Build a SOLN1! I show the parts, plus put up a wiring diagram.
The diagram can be downloaded from lasersaber’s website.
http://laserhacker.com/forum/index.php?board=2.0 Go to page 16
The parts (not including the solar panel)
3.2V 20Ah A123 LiFePO4 Prismatic APP72161227 PHEV/EV/E-REV Rechargeable Battery
Protection Circuit Module (PCM) for 4 cells (12.8V) LiFePO4 Battery Pack at 16A limited — PCM-B04S30-190(LFP)
Found at: www.batteryspace.com
Duracell DRINVP175 175-Watt Pocket Inverter with 2.1-Amp USB Port
Solar Charge Controller (120W, 12V/24V Auto Detection, 10A Rate ) for SLA or LFP Battery
Post time: Jul-03-2017