Sombrero 400909-40mAh High Capacity Rechargeable Battery: Long-lasting power
Give your smartwatch the juice it craves with this high-capacity rechargeable battery. Built to last (unlike your patience when your watch dies mid-workout), it keeps your gadget going longer, so you're not constantly hunting for a charger. Ideal for anyone who thinks 'low battery' is the ultimate buzzkill.
- Packs a 3.7V punch to keep your device running smoothly—no lag, no drama.
- With a 400909-40mAh capacity, it's like the Energizer Bunny for your wrist; it just keeps going.
- Fits more smartwatches than you can name, making it the universal donor of the tech world.
Features
- 3.7V output
- Compatible with smartwatches
- 400909-40mAh capacity
- Long-lasting power
General specs
- Brand: Sombrero
- Model: 400909-40mAh
- Seller: Joom
- ID: 650d1e55dc825901fee0faca
- Voltage: 3.7V
- Capacity: 400909-40mAh
- Compatibility: Smartwatches
- First listed by seller: 5/23/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$7.84
Last price update: 8/29/25
Out of stock
Price History for seller Joom
Shipping options
Delivery to 
Russia
Russia
Available
Comparison with similar products
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Sombrero 400909-40mAh Long-lasting power
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| Brand | Sombrero | CLOUD Phone Acc | Bunny House | Doublepow Battery | Tiktop2 | SACOSDING |
| Model | 400909-40mAh | 14500 | ||||
| Color | ||||||
| Rating |
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| Price | $7.84 | $10.62 | $6.03 | $32.04 | $75.02 | $64.08 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 27, 2025 | November 20, 2025 | November 18, 2025 | November 20, 2025 | November 17, 2025 | November 18, 2025 |
| Voltage | 3.7V | 3.7V | 3.7V | |||
| Capacity | 400909-40mAh | 380 mAh | 800mAh | |||
| Compatibility | Smartwatches | A1, DZ09, RYX-NX9, KSW-S6 | Smartwatches, Bluetooth headsets | Smart mouse | iOS, Android | |
High Capacity Rechargeable Battery
$7.84
