A: Hi Lisa,
Thank you for contacting Printerbase.
Unfortunately this isn't something we can supply. I have checked with Brother and they don't officially sell the battery on its own. You may be able to buy a third party battery but we or Brother can't advise if they will work. This machine is still available therefore the other option is to purchase a completely new scanner.
Sorry about that Lisa. If you do require any further information please let me know.
The Printerbase Team