My latest battery powered PA system uses a Bose S1 Pro and a Behringer Xenix 1002B 9 channel battery powered mixer. I get about 6 hours on a charge at loud volume on the S1 Pro and about 3 hours on 1the Xenix 1002B on a set of 3 9V NiMH rechargeable batteries, so I carry extra batteries for the mixer for longer sets. The S1 Pro has a built in 3 channel mixer for solo or small 2 piece combo bands. Sound quality is superb and a second S1 Pro can be daisy chained from the first for more coverage. A bass guitar can also play through the S1 Pro....
Hi Ric,
Thanks for the update.
I wonder if you can power that mixer using a car or motorcycle battery (which would have longer runtime in Watt-Hours) than a set of 9v batts, and using a cigarette lighter 12v-to-9v adapter plug? (which would go into where you plug in the normal 110v AC to 9v DC wall adapter on the mixer with the round barrel plug)
Not sure on the amp limit of these things, but if that mixer is able to be powered by 9v batts for a while, the amp load is likely to be low enough that a garden-variety 12v-to-9v adapter plug that has a 7805 regulator chip and heatsink, aka a 'buck convertor' should be able to give you a lot longer runtime than swapping out some 9v cells.
Of course an SLA 12v battery is going to cost you in weight, but maybe it's worth exploring?
You'd also need a charger for the 12v batt at home. Not sure if you explored this in the past, so sorry if I am asking a question that you've already answered.
There are also lithium ion battery packs that can do 12v, like for power tools, that have both a high amp limit as well as high watt-hours, that might be able to be adapted with that same 12v-to-9v cable and some alligator clips (or some other attachment method to the battery pack), and you usually get 2 batt packs in the nicer kits as well as a charger...
just thinking out loud here...