Sombrero 400909-40mAh High Capacity Rechargeable Battery: Long-lasting power
- 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.
General specs
- Brand: Sombrero
- Model: 400909-40mAh
- Seller: Joom
- Voltage: 3.7V
- Capacity: 400909-40mAh
- Compatibility: Smartwatches
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$7.00
Last price update: 7/19/25
Available to order
Shipping options
Delivery to 
United States
United States
Unavailable
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Sombrero 400909-40mAh Long-lasting power
|
Smart Watch 1000 mAh battery
|
SACOSDING Smart Watch 650 mAh battery
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Smart Watch with Extended Battery Life 1000mAh battery with 100-day standby
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Smart Watch with Large Capacity Battery 710 mAh battery
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Military Smart Sports Watch 400 mAh battery life
|
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| Brand | Sombrero | SACOSDING | SACOSDING | Banlvs | LIGE | Tiktop2 |
| Model | 400909-40mAh | Smart Watch | ||||
| Color | ||||||
| Rating |
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| Price | $7.00 | $70.47 | $63.06 | $59.99 | $30.63 | $73.65 |
| Seller | Joom | Joom | Joom | Amazon | Joom | Joom |
| Update | July 18, 2025 | July 30, 2025 | July 30, 2025 | June 27, 2025 | July 30, 2025 | July 30, 2025 |
| Battery Capacity | 1000 mAh | 650 mAh | 710 mAh | 400 mAh | ||
| Waterproof | Yes | Yes | Yes | |||
High Capacity Rechargeable Battery
$7.00
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