We supply different size and different Logo LiPo safe bag, battery charging bag, wholesale only , it's used for protecting your battery in charging process. But you still have to pay much attention on charging process all the time. Thank you. 

Here are some very common size on market, if any other size  please just contact us. OEM, ODM order acceptable, Thank you. 

18*22cm

30*23cm

10*20cm

64*50*95mm

64*50*125mm

185mm*75*60mm