Compare webshops (1)
Sponsored links · Some shops pay us a fee
Sort by:
Shops with other sizes
USB input 5V2A, CR2032 fake battery output 3V1A, can replace one CR2032 3V battery. Suitable for CR2032 3V power supply product, such as , remote control, toy, calculator, etc, without frequent battery replacement, saving money and environmental protections. It can be powered by USB mobile power supply, USB charger, computer, etc. Comes with type-c adapter, also suitable for type-c chargers. Black wire negative electrode, red wire positive electrode, easy to operate.