decided to go with the sla battery. just what I got laying around. I did buy this charger http://www.ebay.com/itm/12V-4amp-Xtend-Tender-Charger-for-12V-22AH-Sealed-Lead-Acid-SLA-Battery-/281159740048?pt=Battery_Chargers&hash=item41766d2a90 with the radio a little less then half the charger is...
I am constructing a portable radio for recreational use. I will consist of a car stereo and speakers. What I need help on is the battery pack for it. I would like light weight and to run the radio with it plugged in charging and not plugged in. The stereo draw a max of 10amps, beween...