... .2V lifepo4 Prismatic 20AH A123 AMP20M1HD-A Cells 1.High safety 2.Long cycle life 3High ener 4low discharge =============================================================================================BEIJING ONLYPOWER ... , MP3 players, walkmans, razors, flashlights, emergency light, sign lights, fire alarm system, LED lights, solar street lamps, lawn lamp, talkie and walker ...