Short circuit protection to prevent short circuit and ensure use safety. USB Port: USB 2.0.
eBay
Liitokala Lii-PD4 Lii-500 Lii-402 Lii-S2 3.7V 18650 NiMH Lithium-Battery Charger 18350 18500 16340 21700 20700 26650 1.2V AA AAA
Aliexpress UK
Constant current charging protects the batteries from current fluctuation. You will need to know the Item Number (12 digit) for all correspondence. 800mAh Capacity.
eBay
1.5V AA 16800mWh Rechargeable Li-ion Batteries High Capacity for Toy Keyboard with Exclusive Charger
Aliexpress UK
Battery type: AAA R03. Output: 2.4V DC for AA/AAA ; 9V DC for 9v battery. During the charging, the LED indicator is Red. Battery type: AA R6. 9V Ni-MH Ni-CD Batteries. Slots: 9v Slot: 2; AA/AAA Slot: 4.
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Liitokala Lii-202 Lii-402 1.2V 3.7V 3.2V 3.85V 18650 18350 26650 18490 AA AAA 14500 21700 Lithium Ni-mh Battery Smart Charger
Aliexpress UK
Net Weight: 33 gm (3 Slots), 42 gm (4 Slots). - USB Port: USB 2.0.
eBay
Liitokala Intelligent Lii-600 Lii-PD4 18650 Lithium Battery Charger 3.7V 21700 26650 18350 18500 17500 25500 1.2V AA AAA
Aliexpress UK
The Duracell AA AAA Battery Charger is a fast and efficient charging solution for NiMH batteries, providing a quick charge in just 45 minutes. With a sleek black design and a capacity for 4 batteri e, this charger is suitable for both AA and AAA batteries. It is a reliable choice for keeping your rechargeable batteries powered up and ready to use for all your household needs.
eBay
XTAR 1.5V AA USB-C 4100mWh Li-ion rechargeable Battery, fast 2.7h USB-C charging,2A high discharge,smart safety protection
Aliexpress UK
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VariCore VC-4000T USB Cable Color Box 2PCS AA 1.5V 4000mWh Type-C Fast Charging Lithium Battery for Mouse, Toys, etc
Aliexpress UK
Automatic short circuit and reverse polarity protection. Ultra quick charging. Removable power lead. You will need to know the Item Number (12 digit) for all correspondence. Compact stylish design.
eBay
1-10PCS Lithium Li-ion 18650 3.7V 4.2V Battery Charger Board DC-DC Step Up Boost Module USB Type-C TP4056 Fast Charge Module
Aliexpress UK
LED indicator shows the charging progress: 25%-50%-75% -100%. Slot: 4-slot. Compact and lightweight, plug and play, easy and simple to use. The colors may be a little difference for the different monitor display.
eBay
DC 5V Type-C 18650 Lithium Battery Charger Board DC-DC Step Up Booster Converter Fast Charge Module For Camera UPS Power Supply
Aliexpress UK