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.
Product details
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
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$6.84
Last price update: 5/30/25
Available to order
Shipping options
Delivery to 
United States
United States
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Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Sombrero 400909-40mAh Long-lasting power
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Rechargeable Battery for Smartwatches High capacity 380 mAh
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SACOSDING Smart Watch 650 mAh battery
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Samsung EB-BR800ABU, EB-BR810ABU, EB-BR170ABU Compatible with Samsung Gear S4
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Smart Watch with Extended Battery Life 1000mAh battery with 100-day standby
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| Brand | Sombrero | CLOUD Phone Acc | Quhgahfa | SACOSDING | Samsung | Banlvs |
| Model | 400909-40mAh | Smart Watch | EB-BR800ABU, EB-BR810ABU, EB-BR170ABU | |||
| Color | ||||||
| Rating |
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| Price | $6.84 | $9.24 | $4.74 | $56.64 | $19.44 | $39.99 |
| Seller | Joom | Joom | Joom | Joom | Joom | Amazon |
| Update | May 30, 2025 | May 30, 2025 | May 30, 2025 | May 30, 2025 | May 30, 2025 | May 30, 2025 |
| Capacity | 400909-40mAh | 380 mAh | 427mAh | |||
| Compatibility | Smartwatches | A1, DZ09, RYX-NX9, KSW-S6 | Smartwatches, Bluetooth headsets | Samsung Gear S4 SM-R800, SM-R810, SM-R805, SM-R815 | ||
High Capacity Rechargeable Battery
$6.84
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