{"product_id":"m3863a-battery-for-philip-fr2-fr2-m3840a-m3860a-m3861a","title":"M3863A Battery For Philip FR2 FR2+ M3840A, M3860A,M3861A","description":"\u003cdiv style=\"color: #1e293b; line-height: 1.7;\"\u003e\n\u003ch2 style=\"font-weight: 800; line-height: 1.3; margin: 0 0 8px; color: #0f172a;\"\u003eM3863A Battery for Philips HeartStart FR2 \u0026amp; FR2+ — 12V 4200mAh Li-MnO₂\u003c\/h2\u003e\n\u003cp style=\"color: #475569; margin: 0 0 16px;\"\u003eNon-rechargeable lithium manganese dioxide battery for Philips HeartStart FR2 and FR2+ automated external defibrillators. 12V, 4200mAh. Delivers up to 300 shocks or 12 hours of continuous operation. Replaces M3860A, M3840A, M3841A, M3861A. US stock, install-by 2030-12.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #f59e0b; color: #1e293b; font-weight: bold; padding: 4px 12px; border-radius: 20px; border: 1px solid #f59e0b;\"\u003e12V \/ 4200mAh Li-MnO₂\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #f1f5f9; color: #475569; padding: 4px 12px; border-radius: 20px; font-weight: 500; border: 1px solid #e2e8f0;\"\u003e~300 Shocks\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #f1f5f9; color: #475569; padding: 4px 12px; border-radius: 20px; font-weight: 500; border: 1px solid #e2e8f0;\"\u003eNon-Rechargeable\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #f1f5f9; color: #475569; padding: 4px 12px; border-radius: 20px; font-weight: 500; border: 1px solid #e2e8f0;\"\u003eUS Stock\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c!-- ── PRODUCT OVERVIEW ── --\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 28px 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"font-weight: bold; margin: 0 0 16px; padding-bottom: 10px; border-bottom: 2px solid #1a56db; display: inline-block; color: #0f172a;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"color: #475569; margin: 0 0 12px;\"\u003eThe \u003cstrong style=\"color: #1e293b;\"\u003eM3863A\u003c\/strong\u003e is the standard battery for the \u003cstrong style=\"color: #1e293b;\"\u003ePhilips HeartStart FR2 and FR2+\u003c\/strong\u003e automated external defibrillator — the AED found in airports, schools, gyms, and public buildings worldwide. Using \u003cstrong style=\"color: #1e293b;\"\u003elithium manganese dioxide (Li-MnO₂) chemistry\u003c\/strong\u003e, this 12V, 4200mAh non-rechargeable pack delivers up to \u003cstrong style=\"color: #1e293b;\"\u003e300 shocks or 12 hours of continuous operation\u003c\/strong\u003e — enough for extended resuscitation scenarios.\u003c\/p\u003e\n\u003cp style=\"color: #475569; margin: 0 0 12px;\"\u003eThis is a \u003cstrong style=\"color: #1e293b;\"\u003esingle-use, disposable battery — do not attempt to recharge\u003c\/strong\u003e. Shelf life is up to 5 years from manufacture when stored at 59-77°F (15-25°C). Installed standby life is typically 3-5 years. The install-by date on this unit is \u003cstrong style=\"color: #1e293b;\"\u003e2030-12\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp style=\"color: #475569; margin: 0 0 12px;\"\u003eThe M3863A is the universal replacement for all FR2\/FR2+ models. It cross-references with \u003cstrong style=\"color: #1e293b;\"\u003eM3860A, M3840A, M3841A, M3861A, and M3863A-146144\u003c\/strong\u003e — all are functionally identical and fully interchangeable. The HeartStart FR2 status indicator monitors the battery: a \u003cstrong style=\"color: #1e293b;\"\u003eflashing red \"X\" means low battery\u003c\/strong\u003e; a \u003cstrong style=\"color: #1e293b;\"\u003esolid red \"X\" means depleted\u003c\/strong\u003e. Replace immediately when either warning appears. US stock, ready to ship.\u003c\/p\u003e\n\u003cdiv style=\"background: #eff6ff; border-left: 4px solid #1a56db; padding: 14px 18px; border-radius: 0 8px 8px 0; margin: 16px 0; color: #475569;\"\u003e\n\u003cstrong style=\"color: #1e40af;\"\u003eKey takeaway:\u003c\/strong\u003e M3863A, 12V 4200mAh Li-MnO₂, non-rechargeable. Universal for FR2\/FR2+. ~300 shocks, 12 hrs operation. Replaces M3860A, M3840A, M3841A, M3861A. 5-year shelf life, install-by 2030-12. Replace when AED shows flashing red X. US stock.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ── COMPATIBLE PART NUMBERS ── --\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 28px 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"font-weight: bold; margin: 0 0 16px; padding-bottom: 10px; border-bottom: 2px solid #1a56db; display: inline-block; color: #0f172a;\"\u003eCross-Referenced Part Numbers — All Interchangeable\u003c\/h2\u003e\n\u003cp style=\"color: #475569; margin: 0 0 12px;\"\u003eAll 6 part numbers below are functionally identical — same 12V, 4200mAh Li-MnO₂ chemistry, same FR2\/FR2+ compatibility.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 16px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background: #f1f5f9; text-align: left; padding: 10px 14px; font-weight: bold; text-transform: uppercase; letter-spacing: .03em; color: #1e293b; border-bottom: 2px solid #e2e8f0;\"\u003ePart Number\u003c\/th\u003e\n\u003cth style=\"background: #f1f5f9; text-align: left; padding: 10px 14px; font-weight: bold; text-transform: uppercase; letter-spacing: .03em; color: #1e293b; border-bottom: 2px solid #e2e8f0;\"\u003eOriginal Device Association\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eM3863A \/ M3863A-146144\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eUniversal replacement — covers all FR2\/FR2+ models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eM3860A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eHeartStart FR2 AED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eM3861A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eHeartStart FR2+ AED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eM3840A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eHeartStart FR2 Defibrillator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; color: #1e293b;\"\u003e\u003cstrong\u003eM3841A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; color: #475569;\"\u003eHeartStart FR2+ Defibrillator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- ── SPECIFICATIONS ── --\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 28px 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"font-weight: bold; margin: 0 0 16px; padding-bottom: 10px; border-bottom: 2px solid #1a56db; display: inline-block; color: #0f172a;\"\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 16px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background: #f1f5f9; text-align: left; padding: 10px 14px; font-weight: bold; text-transform: uppercase; letter-spacing: .03em; color: #1e293b; border-bottom: 2px solid #e2e8f0;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"background: #f1f5f9; text-align: left; padding: 10px 14px; font-weight: bold; text-transform: uppercase; letter-spacing: .03em; color: #1e293b; border-bottom: 2px solid #e2e8f0;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eBattery Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eM3863A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eLithium Manganese Dioxide (Li-MnO₂) — \u003cstrong style=\"color: #b45309;\"\u003enon-rechargeable\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003e4200mAh \/ 4.2Ah \/ ~50.4Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eShock Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eUp to 300 shocks (minimum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eOperating Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eUp to 12 hours continuous \"ON\" time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eShelf Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eUp to 5 years from manufacture (store at 59-77°F \/ 15-25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eInstall-By Date\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003e2030-12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b;\"\u003e\u003cstrong\u003eCompatible AED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003ePhilips HeartStart FR2, FR2 Plus (FR2+), FR2+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; color: #1e293b;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; color: #475569;\"\u003e~0.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- ── FEATURES ── --\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 28px 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"font-weight: bold; margin: 0 0 16px; padding-bottom: 10px; border-bottom: 2px solid #1a56db; display: inline-block; color: #0f172a;\"\u003eWhy This M3863A Battery\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fill,minmax(240px,1fr)); gap: 16px; margin: 16px 0;\"\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 18px 16px;\"\u003e\n\u003ch4 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003e300-Shock Capacity\u003c\/h4\u003e\n\u003cp style=\"margin: 0; color: #475569;\"\u003eDelivers up to 300 defibrillation shocks or 12 hours \"ON\" time. Enough for extended cardiac arrest resuscitation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 18px 16px;\"\u003e\n\u003ch4 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003e5-Year Shelf Life\u003c\/h4\u003e\n\u003cp style=\"margin: 0; color: #475569;\"\u003eUp to 5 years from manufacture when stored at 59-77°F. 3-5 years installed standby. Install-by date: 2030-12.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 18px 16px;\"\u003e\n\u003ch4 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eUniversal FR2\/FR2+ Fit\u003c\/h4\u003e\n\u003cp style=\"margin: 0; color: #475569;\"\u003eM3863A replaces all 6 FR2 battery part numbers — M3860A, M3840A, M3841A, M3861A. One battery for the entire FR2 family.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 18px 16px;\"\u003e\n\u003ch4 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eAED Status Monitoring\u003c\/h4\u003e\n\u003cp style=\"margin: 0; color: #475569;\"\u003eHeartStart FR2 continuously monitors battery. Flashing red X = low battery (replace soon). Solid red X = depleted (replace immediately).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 18px 16px;\"\u003e\n\u003ch4 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eLi-MnO₂ Reliability\u003c\/h4\u003e\n\u003cp style=\"margin: 0; color: #475569;\"\u003eLithium manganese dioxide chemistry — stable, high energy density, low self-discharge. Trusted in medical devices for decades.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 18px 16px;\"\u003e\n\u003ch4 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eUS Stock — Ready to Ship\u003c\/h4\u003e\n\u003cp style=\"margin: 0; color: #475569;\"\u003eIn-stock in US warehouse. No overseas wait times. Keep a spare battery with every AED — when the red X flashes, you need it fast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ── FAQ ── --\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 28px 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"font-weight: bold; margin: 0 0 16px; padding-bottom: 10px; border-bottom: 2px solid #1a56db; display: inline-block; color: #0f172a;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e2e8f0; padding: 16px 0;\"\u003e\n\u003ch3 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eQ: How long does the M3863A battery last in storage and in the AED?\u003c\/h3\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003eA: \u003cstrong style=\"color: #1e293b;\"\u003eUninstalled shelf life:\u003c\/strong\u003e up to 5 years from manufacture date when stored at 59-77°F (15-25°C) in original packaging. \u003cstrong style=\"color: #1e293b;\"\u003eInstalled standby life:\u003c\/strong\u003e 3-5 years under normal room-temperature conditions. After 4 years in the device with no use, approximately 35% capacity remains — still functional but replacement is recommended. \u003cstrong style=\"color: #1e293b;\"\u003eOperational capacity:\u003c\/strong\u003e up to 300 shocks or 12 hours of continuous \"ON\" time once activated. Always check the AED status indicator — a \u003cstrong style=\"color: #b45309;\"\u003eflashing red X\u003c\/strong\u003e means the battery needs replacement soon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e2e8f0; padding: 16px 0;\"\u003e\n\u003ch3 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eQ: Are M3863A, M3860A, M3840A, and M3861A interchangeable?\u003c\/h3\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003eA: \u003cstrong style=\"color: #1e293b;\"\u003eYes — 100% interchangeable.\u003c\/strong\u003e All 6 part numbers (M3863A, M3863A-146144, M3860A, M3861A, M3840A, M3841A) are the same battery: 12V, 4200mAh Li-MnO₂, non-rechargeable. The different numbers simply indicate which specific FR2\/FR2+ model they were originally paired with. The M3863A is the universal replacement that covers all FR2\/FR2+ devices. If your original battery label shows any of these numbers, this M3863A fits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e2e8f0; padding: 16px 0;\"\u003e\n\u003ch3 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eQ: Can the M3863A battery be recharged?\u003c\/h3\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003eA: \u003cstrong style=\"color: #b45309;\"\u003eNo. This is a non-rechargeable, single-use battery. Do NOT attempt to recharge it.\u003c\/strong\u003e The lithium manganese dioxide (Li-MnO₂) chemistry is not designed for recharging — attempting to do so may cause overheating, leakage, fire, or explosion. When the battery is depleted (solid red X on the AED status indicator), dispose of it properly and install a new M3863A. This is a disposable medical device battery — it is replaced, not recharged.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e2e8f0; padding: 16px 0;\"\u003e\n\u003ch3 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eQ: How many shocks can the M3863A deliver?\u003c\/h3\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003eA: The M3863A is rated for a \u003cstrong style=\"color: #1e293b;\"\u003eminimum of 300 shocks\u003c\/strong\u003e at maximum energy, or \u003cstrong style=\"color: #1e293b;\"\u003eup to 12 hours of continuous \"ON\" time\u003c\/strong\u003e (monitoring and analyzing, with or without shocks). In practice, this covers the vast majority of cardiac arrest resuscitation scenarios — most require far fewer than 300 shocks. For public-access AED programs, this capacity ensures the device is ready for multiple incidents between battery changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e2e8f0; padding: 16px 0;\"\u003e\n\u003ch3 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eQ: Which AED models are NOT compatible with the M3863A?\u003c\/h3\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003eA: This battery is \u003cstrong style=\"color: #1e293b;\"\u003eexclusively for the Philips HeartStart FR2 and FR2+ (FR2 Plus)\u003c\/strong\u003e. It does NOT fit the HeartStart FR3, FRx, HS1\/OnSite, Home, or the newer HeartStart FR3\/FRx generations. It also does not fit AEDs from other manufacturers — ZOLL, Physio-Control\/LifePak, Cardiac Science, Defibtech, etc. Always verify your AED model says \"HeartStart FR2\" or \"FR2+\" on the device label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e2e8f0; padding: 16px 0;\"\u003e\n\u003ch3 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eQ: When should I replace the M3863A in my AED?\u003c\/h3\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003eA: Replace the battery:\u003c\/p\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003e\u003cstrong style=\"color: #1e293b;\"\u003e1)\u003c\/strong\u003e Immediately when the AED status indicator shows a \u003cstrong style=\"color: #b45309;\"\u003esolid red X\u003c\/strong\u003e — battery is depleted.\u003c\/p\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003e\u003cstrong style=\"color: #1e293b;\"\u003e2)\u003c\/strong\u003e Soon when it shows a \u003cstrong style=\"color: #b45309;\"\u003eflashing red X\u003c\/strong\u003e — battery is low.\u003c\/p\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003e\u003cstrong style=\"color: #1e293b;\"\u003e3)\u003c\/strong\u003e After any use where shocks were delivered — even if capacity remains, protocol is to install a fresh battery.\u003c\/p\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003e\u003cstrong style=\"color: #1e293b;\"\u003e4)\u003c\/strong\u003e By the install-by date on the label (2030-12) regardless of status.\u003c\/p\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003e\u003cstrong style=\"color: #1e293b;\"\u003e5)\u003c\/strong\u003e If the battery has been stored at extreme temperatures. Keep a spare battery with every AED at all times.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px 0;\"\u003e\n\u003ch3 style=\"font-weight: bold; margin: 0 0 6px; color: #1e293b;\"\u003eQ: How should I store the M3863A battery?\u003c\/h3\u003e\n\u003cp style=\"color: #475569; margin: 0;\"\u003eA: Store in the original packaging at \u003cstrong style=\"color: #1e293b;\"\u003e59-77°F (15-25°C)\u003c\/strong\u003e — avoid extreme heat, cold, or humidity. Do not store in direct sunlight, vehicles, or unheated storage rooms. Keep the battery dry. For AED program managers: rotate stock based on manufacture date — use oldest batteries first. Inspect spare batteries annually for physical damage or swelling. Dispose of expired or damaged batteries through an approved lithium battery recycling program.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ── SUMMARY ── --\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 28px 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"font-weight: bold; margin: 0 0 16px; padding-bottom: 10px; border-bottom: 2px solid #1a56db; display: inline-block; color: #0f172a;\"\u003eSummary\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 16px 0;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b; font-weight: bold; white-space: nowrap; width: 30%;\"\u003eBattery Model\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eM3863A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b; font-weight: bold; white-space: nowrap; width: 30%;\"\u003eChemistry\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eLi-MnO₂ — non-rechargeable, single-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b; font-weight: bold; white-space: nowrap; width: 30%;\"\u003eVoltage \/ Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003e12V \/ 4200mAh \/ ~50.4Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b; font-weight: bold; white-space: nowrap; width: 30%;\"\u003ePerformance\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003e~300 shocks \/ 12 hrs operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b; font-weight: bold; white-space: nowrap; width: 30%;\"\u003eShelf \/ Standby Life\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003eUp to 5 years shelf \/ 3-5 years installed standby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b; font-weight: bold; white-space: nowrap; width: 30%;\"\u003eInstall-By Date\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003e2030-12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #1e293b; font-weight: bold; white-space: nowrap; width: 30%;\"\u003eCompatible AED\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border-bottom: 1px solid #e2e8f0; color: #475569;\"\u003ePhilips HeartStart FR2, FR2+ (FR2 Plus)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; color: #1e293b; font-weight: bold; white-space: nowrap; width: 30%;\"\u003eReplaces\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; color: #475569;\"\u003eM3860A, M3840A, M3841A, M3861A, M3863A-146144\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ZhanPeng","offers":[{"title":"Default Title","offer_id":47810411528370,"sku":null,"price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/8646\/9298\/files\/300_3935bc81-adf5-497a-a1ac-3029dd317c2c.jpg?v=1785798198","url":"https:\/\/laptopbatteriesadapters.com\/products\/m3863a-battery-for-philip-fr2-fr2-m3840a-m3860a-m3861a","provider":"ZhanPeng","version":"1.0","type":"link"}