802025H Lithium ion polymer Battery (LiPo) (3.7V 350mAh)
4x ICR18500 3.7V 1400mAh Rechargeable Li-ion Battery for Yard solar spot lights | eBay
DC 3.7V 650mAh AHB622540N01 Rechargeable Lithium Battery for Sennheiser Momentum 2.0 HD 4.40 HD 4.50 HD 450 Urbanite XL Wireless Bluetooth Headphones Aerox 9 Aerox 5 Mouse : Amazon.com.au: Electronics