OXWINOU Replacement Battery for Charge 3 Speaker — 7000mAh 3.7V 1-Pack with Installation Tools

OXWINOU 7000mAh replacement battery compatible with Charge 3 (GSP1029102A) restores long runtime and reliable power for your portable Bluetooth speaker.

If your JBL Charge 3-style speaker is running out of playtime, slow to charge, or shutting down unexpectedly, replacing the internal cell is often the fastest, most cost-effective fix. This OXWINOU battery is designed to match the GSP1029102A form factor and voltage (3.7V) while delivering higher capacity than the original, giving your speaker extended listening before the next recharge.

How much longer does this 7000mAh battery let the speaker play?

The OXWINOU cell provides increased mAh compared with many original internals, translating to noticeably extended playback time under comparable volume and usage. Actual runtime varies by volume level, audio content, and Bluetooth usage, but users typically see a measurable boost over lower-capacity cells.

• 7000mAh nominal capacity for extended music sessions
• 3.7V rating matching Charge 3 battery specifications
• Higher capacity than many OEM 6000mAh cells

Is it easy to install the replacement battery myself?

OXWINOU includes a screwdriver and pry tool to simplify installation, and clear teardown videos are widely available online. Basic soldering is not required in most swaps — the battery uses a high-quality connector wire for a secure, straightforward replacement.

• Comes with screwdriver and pry bar for disassembly
• Pre-wired connector reduces installation complexity
• Numerous step-by-step videos available for guidance

Will this battery work with my speaker and is it safe?

This unit is made to be compatible with the GSP1029102A battery slot used in many Charge 3-style speakers, but it is not compatible with Charge 2 models. The cell is wrapped in a cushioning sponge to damp vibration and protect internal components during use.

• Compatible with Charge 3 (check model numbers before ordering)
• Not compatible with Charge 2 — confirm speaker model first
• Foam padding around the cell reduces vibration and wear

What quality features come with the OXWINOU replacement battery?

OXWINOU focuses on durable connections and safer wiring to minimize risk during operation. The package includes installation tools and uses robust connector leads so your speaker retains reliable power delivery after the swap.

• High-quality connection wires for safer performance
• Included installation tools for DIY repair convenience
• Designed for sustained output under heavy audio loads

Who is this for: This replacement battery is ideal for DIY-minded owners of Charge 3-compatible Bluetooth speakers who want to restore or extend playback time without buying a new speaker. It's a practical choice for people comfortable following online repair guides, and for technicians or repair shops offering cost-effective battery replacement services.