New M5070A battery for Philips HeartStart AED – works for Home, OnSite, FRx, HS1, M5066A, M5067A

New M5070A Battery – For Philips HeartStart Home OnSite AED, FRx, HS1 (Replaces M5066A, M5067A)

Look, if you own a Philips HeartStart AED – whether it's the Home OnSite, the FRx, or the HS1 – you already know the battery doesn't last forever. It's not the machine. It's just how batteries work. And when that battery indicator starts blinking, you need a replacement. Not next week. Now.

This is a new M5070A battery. It's the direct, OEM-spec replacement for Philips HeartStart AEDs. Works for the Home OnSite, FRx, and HS1 models. Also replaces older part numbers M5066A and M5067A.

Here are the specs that actually matter:

• Voltage: 9V DC (standard for these units)

• Capacity: 4.2Ah (4200mAh) – that's the full factory spec

• Cell details: Uses high-grade lithium manganese dioxide (Li-MnO2) cells. This chemistry is chosen for a reason – long shelf life, stable voltage, and reliable performance in extreme temperatures. Each battery includes built-in safety protection against short circuits and over-discharge.

• Standby life: Rated for 4 years (or 5 years depending on model) when installed in the AED. That means you install it and forget it – until you need it.

Replace Part Numbers

• M5070A
• M5066A
• M5067A
• M5068A
• 861304

Compatible Models

• Replacement For FRx AED 
• Replacement For OnSite
• Replacement For HS1
• Replacement For Home Defibrillator

Product Highlights (no fluff):

• Exact fit for Philips HeartStart Home OnSite, FRx, and HS1

• Replaces part numbers M5070A, M5066A, M5067A

• 9V, 4.2Ah lithium manganese dioxide – same as original

• 4+ year standby life – ready when you need it

• Pre-installed connector – just plug and go (no tools)

• Meets Philips performance standards – not a cheap generic

Why buy this one instead of a cheaper "compatible" battery?

Honestly? Because this is a medical device battery. Not a toy. A cheap knockoff might save you twenty bucks upfront. But if it fails when someone's heart stops? That's not a risk you want to take. This M5070A is new, OEM-spec, and built to the same standards as the one that came with your AED. It's not the absolute cheapest option out there. But it's the reliable one. And for something that could save a life, reliable is what matters.

Your AED is a life-saving tool. Don't let a dead battery make it useless. Swap in this M5070A replacement. Install it, forget it, and know your device is ready. Worth every penny.