[Elecraft] Battery Charger for Small Solar Power Syatem

[Wilson Lamb]

Start simple...car battery, or borrow from your lawn tractor.
Small charge controller selected for min RFI.
If the kid can concentrate on a job, salvage 18650 cells from old laptop batteries and build packs of whatever size you need.
"Dead laptop batteries usually have just a couple of bad cells and some shops will give/sell them cheap.
Ebay has the plastic hardware for assembling packs without duct tape.
Get single cell chargers from ebay for initial conditioning.
There's a lot of potential learning here!
73,
Wilson
W4BOH