Portable Backup Charger for Acer Iconia B1 710

archp2008
archp2008 Member Posts: 9 New User

I have one of those that I purchased from Ebay for $7.99 (US). It uses aa rechargeable batteries.  I'm a little worried that it may not be safe for my tablet and, in particular, what damage using the higher voltage alkaline cells might cause.  Does anyone else have experience using one of these?  I read some place that only AC charging is recommended for the Acer Iconia B1-710.