Wll, for portability,, You coudl us a GC-12 (12 volt golf car) a pair of GC-2's is a bit heavy.
But this is one area in which AGM batteries are preferred, You can get smaller DEEP CYCLE AGM's (liek Group 27-31 sizes) and not only are they low gassing (Sealed Valve Regulated Lead Acid batteries, very nearly non venting in fact) Which makes them better for indoor use.. They do not come with a "This side up" sticker, so if you lay it on it's side or even upside down (Both common with portable devices) no damage.
They are, however, more expensive.
|