any thoughts on using solar to charge cordless power tool batteries without an inverter or converter. in other words some type direct hook up. Kobalt (Lowes brand) has a cordless 80V lithium chainsaw and blower, among others. Would love to figure out how to direct from solar charge.
All thoughts appreciated
-- Edited by flatroofdoctor on Tuesday 18th of July 2017 02:08:25 PM
mycroft8 said
07:02 PM Jul 18, 2017
By "direct solar", I assume you mean the DC voltage from solar panels directly charging the 80v tool battery.
For lithium batteries, you really need a charger. An AC charger for those batteries both converts 120VAC to DC; plus it tracks how the battery is charging. For safety, you need this.
It would be possible to put say 7 12V solar panels in series to get 84V; then use a DC->DC charger. I don't know if those are readily available.
All thoughts appreciated
-- Edited by flatroofdoctor on Tuesday 18th of July 2017 02:08:25 PM
For lithium batteries, you really need a charger. An AC charger for those batteries both converts 120VAC to DC; plus it tracks how the battery is charging. For safety, you need this.
It would be possible to put say 7 12V solar panels in series to get 84V; then use a DC->DC charger. I don't know if those are readily available.
Dave