Doublepow Battery UK11 Dual Slot USB Charger for Lithium Batteries: Dual slot charging

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Dual Slot USB Charger for Lithium Batteries — Chargers, Doublepow Battery

Meet the Smart Dual Slot USB Charger—your go-to gadget for juicing up two 18650 or 21700 lithium batteries at the same time without breaking a sweat. Thanks to its USB power input, you can plug it into just about anything (yes, even that ancient laptop you refuse to part with) to keep your batteries charged and ready for action. It’s smart, too, with a voltage output that dances between 3.7V and 4.2V, making it a perfect match for a variety of lithium batteries. Plus, it’s so compact and light, you’ll forget it’s in your bag until you need it—whether you’re at home or on the move.

Here’s the lowdown on what makes it tick:

Double the fun—charge two batteries at once, because who has time to wait?
USB powered means you’re not tied down to one power source. Freedom!
LED indicators keep you in the loop, so you’re not left guessing if it’s done.
And, because we care, it’s got your back with protection against overcharging and those pesky short circuits.

Features

USB powered
Compatible with 18650/21700 batteries
3.7V/4.2V output
Compact design
Dual slot charging

Model

UK11

General specs

Brand: Doublepow Battery
Model: UK11
Seller: Joom
ID: 67a9d4fb416d8901af10832e
Compatibility: 18650, 21700
Input: USB
Output Voltage: 3.7V, 4.2V
Charging Slots: 2
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

$11.95

Last price update: 11/15/25

Out of stock

Price History for seller Joom

Date	Price
11/15/25	$11.95
5/23/25	$8.78

Shipping options

Delivery to

Russia

Available

Comparison with similar products

	This item	Recommendations
	Doublepow Battery UK11 Dual slot charging	Smart Charger Adapter for Lithium-Ion Batteries Single slot design	USB Smart LCD Display Lithium Battery Charger 4-slot charging	Smart 18650 Charger with USB QC3.0 Output Fast charging with QC3.0	chigood Bt-c3100 Compatible with multiple battery types	Smart LCD Battery Charger 12-slot charging
Brand	Doublepow Battery	NATAWA	CUCU	OutsideWorld	chigood	PALO
Model	UK11				Bt-c3100
Color
Rating	(4)	(2)	(2)	(2)	(2)	(1)
Price	$11.95	$7.08	$29.56	$41.42	$100.38	$69.92
Seller	Joom	Joom	Joom	Joom	Joom	Joom
Update	November 14, 2025	December 7, 2025	December 9, 2025	December 7, 2025	December 7, 2025	December 7, 2025
Compatibility	18650, 21700				Li-ion, NiCd, NiMH, AA, AAA, 10440	NiMH, NiCD, AA, AAA
Compatible Battery Types		18650, 14500	18650, 26650, 16340	26650, 18650, 18350, 17670, 17500, 16340, 14500, AA
Display			LCD		LCD	Smart LCD
Slots				2	4	12