Doublepow Battery UK41 Smart USB Charger for 3.7V Lithium-Ion Batteries: 4 Slots
Meet the Smart USB Charger—your go-to gadget for juicing up 3.7V Lithium-Ion batteries (yeah, including those 18650 ones) without breaking a sweat. Got four batteries? No problem. This little powerhouse can charge them all at once, because who has time to wait? Thanks to its smart charging technology, it’s like having a mini battery butler that tweaks the current just right and says 'nope' to overcharging, keeping your batteries happy and healthy. Whether you’re a gadget guru or just someone who hates running out of juice, this compact charger is a game-changer. Plus, it plays nice with a ton of devices, making it the Swiss Army knife of chargers. Essential? You bet.
Features
- Double 18650 Compatibility
- USB Charging
- Smart Charging Technology
- 4 Slots
General specs
- Brand: Doublepow Battery
- Model: UK41
- Seller: Joom
- ID: 67a9734931e9ae012c467ddd
- Compatibility: 3.7V Lithium-Ion Batteries, 18650
- Charging Slots: 4
- Charging Technology: Smart Charging
- Input: USB
- First listed by seller: 5/23/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
Comparison with similar products
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|---|---|---|---|---|---|---|
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Doublepow Battery UK41 4 Slots
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Smart Charger Adapter for Lithium-Ion Batteries Single slot design
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USB Smart LCD Display Lithium Battery Charger 4-slot charging
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chigood Bt-c3100 Compatible with multiple battery types
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QQs Bt-c3100 4-slot charging
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RUI RUI YU 2 Bt-c3100 Compatible with multiple battery types
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| Brand | Doublepow Battery | NATAWA | CUCU | chigood | QQs | RUI RUI YU 2 |
| Model | UK41 | Bt-c3100 | Bt-c3100 | Bt-c3100 | ||
| Color | ||||||
| Rating |
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| Price | $8.42 | $7.08 | $29.56 | $100.38 | $95.47 | $95.57 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | June 2, 2025 | December 7, 2025 | December 9, 2025 | December 7, 2025 | December 7, 2025 | December 7, 2025 |
| Compatibility | 3.7V Lithium-Ion Batteries, 18650 | Li-ion, NiCd, NiMH, AA, AAA, 10440 | Li-ion, NiCd, NiMH, AA, AAA, 10440 | |||
| Compatible Battery Types | 18650, 14500 | 18650, 26650, 16340 | Li-ion, NiCd, NiMH, AA, AAA, 10440 | |||
| Display | LCD | LCD | LCD | |||
| Plug Type | UK | EU plug | U.S. plug | |||