What battery does a JBL Charge 4 use?

A JBL Charge 4 uses the cell that replaces SUN-INTE-118, 1INR19/66-3 or ID998, stocked here as a 7800mAh high-capacity pack at $29.99.

What battery does a JBL PartyBox 720 use?

A JBL PartyBox 720 uses the OEM 5000mAh pack, and the same cell also fits the PartyBox 520 and the Boombox 4.

Why does my JBL speaker battery die so fast?

A JBL speaker battery dies fast mainly because of high volume. Update firmware via the JBL Portable app, turn off bass boost and PartyBoost, and avoid using the Charge as a powerbank.

How long should a JBL Charge 5 or Charge 6 battery last per charge?

A JBL Charge 5 should run up to 20 hours per charge and a Charge 6 up to 24, per official ratings. Independent testing lands closer to 13 hours at real-world volume.

Do higher capacity batteries give a JBL speaker more playtime?

Yes, a higher mAh cell gives more playtime per charge when voltage and connector match the original. The 7800mAh Charge 4 pack outlasts the stock cell.

Will opening my JBL speaker break the waterproofing?

Opening a JBL speaker risks the waterproof seal if it is not reseated properly. Pry carefully, keep the clips intact, and press the seal back before closing up.

Bluetooth Speaker Replacement Batteries for JBL Charge, PartyBox and Boombox

Q: Can I replace the battery in a JBL Charge 5 myself?

Yes, once the speaker is out of warranty: release the fabric cover and clips, unplug the old cell, plug the new one in, and reseat the seal so the waterproofing survives.

JBL bluetooth speaker replacement batteries from $23.99: packs for the Charge 4, Charge 5, Charge 6, PartyBox 720 and Boombox 4, each matched by the part number printed on the original cell. Every pack is capacity-checked before dispatch and covered by a 1-year warranty.

Shop all speaker batteries

4battery packs listed

5JBL speaker models

5000-7800mAh range

1 yrreplacement warranty

Replacement battery for JBL Charge 6 bluetooth speaker

Matched by part number1-year warranty60-day returns

How Do You Pick the Right Bluetooth Speaker Battery?

A bluetooth speaker battery is matched by the part number on the original cell and the connector on the pack. Three checks cover every JBL speaker on this page.

Match the part number on the old cell

Open the speaker and read the code on the battery: SUN-INTE-118 or 1INR19/66-3 for the Charge 4, GSP-1S3P-CH40 for the Charge 5, I0328A for the Charge 6. That code, not the speaker name alone, decides the replacement. Capacity in mAh tells you the runtime class.

Send us a photo of the old cell and we confirm the match before you pay.

Voltage and connector before capacity

A 3.7V lithium cell with the wrong plug is useless; the right cell with higher mAh is an upgrade. The packs on this page run 5000 to 7800mAh, and higher numbers simply play longer per charge. Never fit a cell with a different voltage rating than the original, whatever the capacity promise.

A 7800mAh Charge 4 pack outlasts the stock cell on the same speaker.

Know what the swap involves

JBL speakers are sealed, and the batteries are not officially user-serviceable. Out of warranty, the swap is a pry-open job: release the fabric cover and clips, unplug the old cell, plug the new one, and reseat the seal so the waterproofing survives. iFixit publishes step-by-step guides for the Charge line.

All packs here carry the same 1-year warranty.

Speaker Batteries by JBL Model

Pick your speaker. Each panel shows the part number, specs, fit list and price.

JBL Charge 4 battery

The high-capacity swap for the fast-dying Charge 4.

$29.99

7800mAh lithium cell

Replaces

SUN-INTE-1181INR19/66-3ID998

Buy the Charge 4 battery

JBL Charge 5 battery

The internal pack built specifically for the Charge 5.

$23.99

7500mAh internal cell

Replaces

GSP-1S3P-CH40

Buy the Charge 5 battery

JBL Charge 6 battery

The spec-matched cell that fixes short runtime and random shutoffs.

$39.99

I0328A spec-matched cell

Fits

JBL Charge 6

Buy the Charge 6 battery

JBL PartyBox 720 battery

The OEM big-rig pack, one cell covers three machines.

$89.99

5000mAh OEM cell

Fits

PartyBox 720PartyBox 520Boombox 4

Buy the PartyBox battery

All 4 Speaker Batteries in One Table

Speaker, part number, capacity and price. The full range at a glance.

Speaker	Replaces	Capacity	Type	Price	Order
JBL Charge 4	SUN-INTE-118, 1INR19/66-3, ID998	7800mAh	High-capacity swap	$29.99	Buy
JBL Charge 5	GSP-1S3P-CH40	7500mAh	Internal pack	$23.99	Buy
JBL Charge 6	I0328A	Spec-matched	I0328A cell	$39.99	Buy
PartyBox 720	OEM pack	5000mAh	Also fits 520, Boombox 4	$89.99	Buy

Prices checked against each product page in September 2026.

Which Speaker Are You Reviving?

Two families and one decision: swap the cell or buy new.

Charge family

Charge 4, 5 and 6

PartyBox and Boombox

Big-rig speakers

PartyBox 720, 520 and Boombox 4: one OEM 5000mAh pack, $89.99
The swap math: a new PartyBox costs hundreds, the cell costs $89.99

Swap or replace?

The cost decision

A Charge battery swap runs $23.99 to $39.99 against $150 to $200 for a new speaker
The speaker itself rarely dies; the cell does
Volume and bass boost drain cells fastest, so heavy listeners age packs sooner

Why Buy Your Speaker Battery Here

1 yr

Replacement warranty

All batteries and adapters are covered for 1 year against manufacturing defects. A defective pack gets a free replacement.

Days to return

Unused packs in original packaging can come back within 60 days. Defective or incorrect items ship back on us.

100%

Checked before dispatch

Every battery runs a function and capacity check before it ships, the same bench procedure we use across the store.

24 h

Support response

Email support@laptopbatteriesadapters.com or WhatsApp +86 185 7067 9070. Requests are reviewed within 24 hours.

Spec-Matched Cells, Bench-Tested Before Dispatch

What spec-matched means here

Each pack is matched against the original part number: SUN-INTE-118 for the Charge 4, GSP-1S3P-CH40 for the Charge 5, I0328A for the Charge 6, and the OEM pack for the PartyBox line. Voltage and connector come from the original cell, capacity comes from the label, and a wrong match never leaves the bench.

Runtime you can measure against

JBL rates the Charge 5 at up to 20 hours of playtime and the Charge 6 at up to 24. Independent testing lands closer to 13 hours at real-world volume, and bass boost plus PartyBoost pairing cut it further. When your speaker plays a fraction of those numbers, the cell is done, and a 7800mAh swap outlasts the stock pack on the same machine.

Speaker Battery Finder and Drain Checker

Find your pack by speaker, or check why the runtime fell off a cliff.

Not sure which cell your speaker takes?

Send us the part number on the old battery, or a photo of the cell. We confirm the match before you pay anything.

Ask us, it is free Browse the collection

Bluetooth Speaker Battery FAQ

A JBL Charge 4 uses the cell that replaces SUN-INTE-118, 1INR19/66-3 or ID998, and this page stocks it as a 7800mAh high-capacity pack at $29.99. The same fit, same plug, more playtime than the stock cell. View the Charge 4 battery.

A JBL Charge 5 uses the GSP-1S3P-CH40 internal battery, a 7500mAh pack built specifically for the Charge 5 at $23.99. If your Charge 5 dies after 30 minutes, this is the cell that restores full runtime. View the Charge 5 battery.

A JBL Charge 6 uses the I0328A battery cell, spec-matched for the Charge 6 at $39.99. It fixes the short-runtime and random-shutoff symptoms that mark a tired cell. View the Charge 6 battery.

A JBL PartyBox 720 uses the OEM 5000mAh pack at $89.99, and the same cell also fits the PartyBox 520 and the Boombox 4. One battery covers all three big-rig machines, which softens the price next to any replacement speaker. View the PartyBox battery.

Yes, you can replace the battery in a JBL Charge 5 yourself once it is out of warranty. The job is a pry-open: release the fabric cover and the plastic clips, unplug the old cell, plug the new one in, and reseat the seal so the waterproofing survives. iFixit publishes a step-by-step Charge 5 guide. In warranty, contact JBL first, because opening the speaker voids it.

A JBL speaker battery dies fast mainly because of high volume, which drains far more power than anything else. Update the firmware through the JBL Portable app, since JBL ships battery optimizations that way, then turn off bass boost, LED lights and PartyBoost when you do not need them. Using the Charge as a powerbank for your phone also eats the cell. If runtime stays short at moderate volume, the battery is aged out.

A JBL Charge 5 should run up to 20 hours per charge and a Charge 6 up to 24, per JBL's official ratings. Independent testing lands closer to 13 hours at real-world volume, and bass-heavy playback at high volume cuts it to a fraction. A full recharge takes about two and a half hours.

Replacing the battery is worth it: a Charge-family cell costs $23.99 to $39.99 against $150 to $200 for a new speaker, and the speaker itself rarely dies. The math is the same logic as our battery cost sanity check: fix the part that failed, keep the machine.

Yes, a higher mAh cell gives a JBL speaker more playtime per charge when the voltage and connector match the original. The 7800mAh Charge 4 pack on this page outlasts the stock cell on the same speaker, and extended-capacity Charge 5 packs are reported to add around a third more playtime. Match the part number first, then take the biggest capacity listed for it.

Opening a JBL speaker risks the waterproof seal if it is not reseated properly, because the fabric cover and the seals underneath are part of the IP rating. Pry carefully, keep the clips intact, and press the seal back into its channel before you close up. Do the swap in a dry room, and remember the battery is officially not user-serviceable, so this is an out-of-warranty job.

Bluetooth Speaker Replacement Batteries for JBL Charge, PartyBox and Boombox