This is a Ring Automotive Battery Charger RCB208 in good working order, its hardly been used.
eBay
3S 20A Li-ion Lithium Battery 18650 Charger Protection Board PCB BMS 11.1V 12V 12.6V Cell Charging Protecting Module
Aliexpress UK
Rated output: 12V DC, 5-6A Max. Plug Type: UK Plug. The charging light will be bright when charging, when charging full the light will be off. Battery range: 4-100Ah.
eBay
6V 3W 12V 2W Solar panel with Solar min battery charger with battery display DIY KIT PH 2.0 Cable
Aliexpress UK
It combines repair and maintenance, extending battery life by up to 30%. Gross weight: 800g. 【Wide Compatibility】Suitable for 12V lead-acid batteries commonly used in cars, motorcycles, trucks, and other vehicles.
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1-10PCS 3S 20A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board For Drill Motor 12.6V-13V Lipo Cell Module
Aliexpress UK
LED indicator displays battery charging status at level of 25%/50%/75%/100%. Rated output: 12V DC 1.5A. Non battery link protection: Yes. Cooling : Natural convection. Over temperature protection: Yes.
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Multi-Cell 2S 3S 4S Type-C To 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V 18650 Lithium Battery
Aliexpress UK
Short Circuit Protection: Yes. Electric Shock Protection: Yes. Battery range: 2-80Ah. Overheat Protection: Yes. Material:Plastic shell. Fire Protection: Yes. Overcurrent Protection: Yes.
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2S 3S 4S Li-ion battery charger battery protection board TypeC USB boost charging board DC3-5V Step-Up
Aliexpress UK
Suitable for use with 6/12V Car, Motorcycle, Van, Marine and Lawnmower Lead Acid Batteries. Reverse hook up protection and short circuit protection.
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2-Channel 5V2A 3.7v Original Smart Quick Usb Charger Li-ion battery Rechargeable 26650/16340/14500/21700/18650 Lithium batteries
Aliexpress UK
It is suitable for standard, maintenance free or sealed lead-acid batteries and has an LED charging indicator that will let you know the battery is ready to be used. It also provides protection against incorrect and reverse polarity connections and also protection against thermal and current overloads.
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TypeC Multi-Cell 2S 3S 4S To 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V 18650 Lithium Battery
Aliexpress UK
Note: not all battery can be recovered, only use on Car or Motorcycle battery, it is not a jump starter. One button to select different modes.
eBay
3S 20A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board For Drill Motor 12.6V Lipo Cell Module
Aliexpress UK