Ideal DIY battery for MP3, MP4, MP5, GPS, electric razor, mobile phone, power bank, iPod, E-book, tablet, iPad, LED flashlight, remote controller, Bluetooth headset, speaker, selfie stick, headphone, voice recorder, mini digital camera, radio, portable DVD, MID, PDA, pos machine, interphone, PSP, solar lamp, electric toy, cosmetic & massage instrument, medical equipment, and other devices with the same battery size and capacity.