New 7800mAh replacement battery for JBL Charge 4 – fits SUN-INTE-118, 1INR19/66-3, ID998

7800mAh Replacement Battery for JBL Charge 4 – Fits SUN-INTE-118, 1INR19/66-3, ID998

Look, your JBL Charge 4 sounds fine, but the battery is toast. Maybe it lasts 30 minutes now, or dies as soon as you unplug. Annoying, right? This is the 7800mAh internal battery. It replaces SUN-INTE-118, 1INR19/66-3, and ID998. All these are the same physical cell. Pop open the speaker (carefully), swap the old one out, and put this in. You don't need to be a tech person. After that, your Charge 4 will run all afternoon again. Way cheaper than a new speaker.

Okay, so your JBL Charge 4 speaker doesn't hold a charge like it used to. Maybe it dies after an hour, or shuts off when you turn up the volume. Super annoying, especially when you're outdoors.

Don't throw away the speaker; just swap the battery.

This is a 7800mAh replacement battery for JBL Charge 4 models. It fits part numbers SUN-INTE-118, 1INR19/66-3, or ID998. Yes, those long weird codes. It also works for some Charge 4Q variants, but double-check your original first.

Let me give you the specs that actually matter:

• Capacity: 7800mAh – that's actually higher than the original (which was around 6000mAh). So longer playtime.

• Voltage: 3.7V nominal. Standard for this speaker.

• Cell details: Uses new Grade A lithium-ion cells (the 1INR19/66-3 type, which is a common high-drain cell). Not reclaimed or factory rejects. Each cell has a built-in protection circuit against overcharge, over-discharge, and short circuit.

Product Highlights (no fluff):

• Direct fit for JBL Charge 4 – same connector, same size

• 7800mAh vs original 6000mAh – about 20-30% more runtime

• Safe chemistry with PCM protection

• Easy DIY install (YouTube has guides – takes maybe 10 minutes)

Why buy this one instead of a cheap no-name?

Honestly? Because cheap ones lie. They say 7800mAh but give you 4000. Or they use old cells that swell after a few months. This one is new, tested, and actually delivers the rated capacity. You get steady power, your speaker won't die mid-song, and you save a lot compared to buying a new JBL Charge 4. That's just smart spending.

So if your speaker is acting tired, grab this battery. It's a straightforward fix. Feels good to keep good gear running instead of trashing it. Worth the money.