Not been on the forum for a while due to being rather tied up in real life and stuff I'm doing for others.
Anyway, I thought I'd just pop in here and mention another little gift towards my projects.
Today I picked up a couple of 320W 37.5V nominal solar PV panels. Together they will give me enough voltage to set up a solar charger for the 48V lithium pack.
The panels are 1mx2m in size so will go on the house roof. Then I will drop a cable down with a breaker and open voltage to the ground floor where I set up a charging point.
Not sure how to make it work yet but I am guessing that if I open the 240Vac charger I have I may be able to find a point where I can measure a dc voltage output from the transformer and then build a regulator that will supply that straight into the charger circuit. If that works then the charger can be solar connected and still be portable for mains ac connection too.