I have two full sets for all of my flashlights, so this 9-volt set of three, plus the included charger, fairly well fills out all my requirements. Max 800mA output, only need 3h to fully charge 3 batteries one time. Easy to read each battery charging state with inserted LED lights for each independent channel. These batteries hold a charge for a long time but when I leave them plugged in I can recharge them and have back ups ready to go. Saved me lots of dough.