Bunny House Lithium Polymer Battery: 3.7V power output
Meet the Lithium Polymer Battery—your gadget's new best friend. Whether it's keeping your smartwatch ticking or your Bluetooth headset jammin', this little powerhouse has got you covered. And with a 3.7V power output, it's like the Energizer Bunny's cooler cousin (it keeps going and going, but looks way sleeker). Plus, it's rechargeable, so you can save some cash and the planet—talk about a win-win.
Why you'll love it:
- Plays nice with all sorts of smart devices—no favoritism here.
- Power so reliable, it's basically the trusty sidekick your gadgets deserve.
- Eco-friendly? Check. Saves you money? Double check. We're not saying it's a superhero, but...
- For smartwatches
- For Bluetooth headsets
- Rechargeable
- 3.7V power output
General specs
- Brand: Bunny House
- Seller: Joom
- Voltage: 3.7V
- Compatibility: Smartwatches, Bluetooth headsets
- Type: Lithium Polymer
- First listed by seller: 6/21/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Lithium Polymer Battery 3.7V power output
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Lithium Polymer Battery 3.7V power output
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Sombrero 400909-40mAh Long-lasting power
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Rechargeable Battery for Smartwatches High capacity 380 mAh
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Smart USB Charger for Lithium Batteries Multi-slot charging
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USB Smart Single-Slot Lithium Battery Charger Light indicator
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| Brand | Bunny House | Quhgahfa | Sombrero | CLOUD Phone Acc | AI Supermarket | Aloisia |
| Model | 400909-40mAh | |||||
| Color | ||||||
| Rating |
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| Price | $5.50 | $4.93 | $7.30 | $9.89 | $7.30 | $5.78 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 20, 2025 | August 20, 2025 | August 19, 2025 | August 18, 2025 | August 22, 2025 | August 23, 2025 |
| Voltage | 3.7V | 3.7V | 3.7V | |||
| Compatibility | Smartwatches, Bluetooth headsets | Smartwatches, Bluetooth headsets | Smartwatches | A1, DZ09, RYX-NX9, KSW-S6 | 18650 lithium batteries | 18650 lithium batteries |
Lithium Polymer Battery
Emma A.
Toulouse
June 28, 2025
i had a problem with my old battery dying too fast and not holding a charge well so i needed a solution and this Bunny House battery came to the rescue it keeps my gadgets running smoothly and reliably which is a big relief for me as a deal hunter who hates wasting money the takeaway is its a solid choice for everyday use but not perfect i recommend it with some caution because while it does the job well it could be better in terms of longevity and power
- Pros: it works great with my smartwatch and headset no issues there and it saves me money since i can charge it over and over again which is quite nice for my budget and the planet too
- Cons: the power output is a bit low at times it seemed to me like it could be stronger for some devices and it doesnt last as long as i hoped before needing a recharge