UI1 Charger (1 Slots)
Lightweight and portable 1000mA USB Charger that fits larger 21700 batteries.
Safe and Efficient Charging
Designed to charge your batteries safe and efficiently. 1000mA maximizes battery recharge cycles so your battery stays healthy over the years.
Works with 21700 batteries
Works for the latest generation of larger 21700 batteries, as well as 18650 sized batteries.
Intelligent USB Charging
Intelligent charging technology automatically detects and applies the appropriate charging current/voltage.
Fire Retardant Materials
Doesn't catch fire, can be used outdoors without any overheating concerns for maximum safety.
How fast does it charge?
Charging duration uses this formula:
Battery Capacity (mAh) / Charger Output Current (mA) = Hours
What's in the box
Lightweight and portable 1000mA USB Charger that fits larger 21700 batteries.
Safe and Efficient Charging
Designed to charge your batteries safe and efficiently. 1000mA maximizes battery recharge cycles so your battery stays healthy over the years.
Works with 21700 batteries
Works for the latest generation of larger 21700 batteries, as well as 18650 sized batteries.
Intelligent USB Charging
Intelligent charging technology automatically detects and applies the appropriate charging current/voltage.
Fire Retardant Materials
Doesn't catch fire, can be used outdoors without any overheating concerns for maximum safety.
How fast does it charge?
| Battery Type (Capacity) | One at a time 1000mA |
| 21700 (5000mAh) | 5hr |
| 21700 (4000mAh) | 3hr |
| 18650 (3500mAh) | 3hr 30min |
| 18650 (2600mAh) | 2hr 36min |
| RCR123 (650mAh) | 39min |
Charging duration uses this formula:
Battery Capacity (mAh) / Charger Output Current (mA) = Hours
What's in the box
- UI1 USB Charger
- High Amp USB Charging Cable
| Input | DC 5V/1A 5W |
| Output | 4.2V±1% |
| Output Current | 1000mA (MAX) |
| Dimensions | 122.5 x 29.2 x 32mm |
| Weight | 40.5g |
| Li-ion/IMR: 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14430, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500,17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22500, 22650, 25500, 26500, 26650 |
"When you need smallest charger at the cheapest price that works with 21700 batteries, this is my best pick."
by Linda L.
by Linda L.
What happens after payment?
When will I receive my lights?
Returns and warranty
User manual
- You will receive a purchase receipt through Paypal after payment.
- Your order will be processed within the next working day and we will email you a tracking code once your package has been shipped.
When will I receive my lights?
- Deliveries in Singapore will take up to 4-6 working days by Courier.
Returns and warranty
- If our lights don't work the way they should, let us know and we'll do our best to get you sorted. 1-year replacement warranty.
User manual
We believe in this product so strongly that we're giving you a 60 days money back guarantee! If for whatever reason you are unsatisfied with your purchase, ship the entire package back to us with your Order #number and we'll give you a full refund!
You’re Backed by Our 60-Day Ironclad Guarantee
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Try it for 60 days. If it’s not right for you, send it back.
We stand behind our gear. If you’re not happy with your purchase, just return the full package within 60 days and we’ll issue a full refund—no fuss, no forms, no hoops to jump through.
What Happens After You Order
- You’ll get an instant order confirmation email with your receipt.
- We’ll pack your order the next working day and send you a tracking number once it’s on the way.
- From the moment you order to the moment it reaches your hands, we’re here to keep you updated and supported.
When will I receive my gear?
- Singapore: Delivered to your doorstep in 4–6 working days.
- International: Arrive within 10–14 working days.
Returns and warranty
- Every product comes with a 1 to 3-year replacement warranty (depending on the item).
- If anything isn’t working right, just let us know. We’ll make it right.
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