Sort:  

Getting a good balance between heat dissipation, speed of charge and size of battery really! Phones nowadays have Lithium-Ion batteries which are of the best batteries out there. They last longer than other types of batteries too. Many factors is your answer!

Coin Marketplace

STEEM 0.23
TRX 0.21
JST 0.036
BTC 98081.40
ETH 3419.35
USDT 1.00
SBD 3.24