Queen Battery QB10440 300mAh - a 3.7V AAA-size Li-ion battery
Power-Xtra 10450 Li-Ion AAA 3.7V 300 Mah Rechargeable AAA Battery - Power Xtra
Source AAA lithium battery icr10440 li ion 3.7V 320mAh 10440 rechargeable battery on m.alibaba.com
Li-ion 18650 3.7V 3000mwh Lithium Ion Rechargeable Battery - China Amazon AAA Rechargeable Batteries and Best Buy Rechargeable Batteries price | Made-in-China.com
MA-030EVO - Battery upgrade - Got the 10440 lithium rechargeable batteries and the AAA “dummy” batteries. Now I shouldn't have to take those hard bottom batteries out any more! : r/MiniZ