Off-grid night-light!

[DamonHD]

Still going...  B^>

Rgds

Damon

[Bruce S]

That's good to see!!

St. Louis dodged the bullet on the massive snow that went north to Chicago.
With the 70s and sunshine I finally saw the dump controllers actually dumping to the next setup.

Cheers;
Bruce S

[DamonHD]

Woooo!  A dump controller actually getting to do its thang!

My equivalent is seeing my big bank brought up to absorption voltage, even if only for a while, though I haven't yet had enough sun for it to get to float.

Rgds

Damon

[DamonHD]

Still going!  So even on the ordinary NiMH AA cells this seems good for one charge for most of winter.  With the low-self-discharge NiMH cells presumably it could manage the whole of winter.

Rgds

Damon

[DamonHD]

Noticed that battery voltage was down to 4.52V (from a nominal 4.8V), so decided to give it a quick charge from my off-grid system this evening, which is full to the top from a couple of days of good sun.

The NiMH charger is configured as a dump load, so will only come on when the SLA voltage is fairly high (around float voltage) and when I got back at dusk it was below that (but well above the lower/LVD threshold).

Evil trick of the day: I put my mobile next to the dump-load circuit and called it from the land-line for not even a full ring.  The RF noise induced was enough to turn the dump on and the NiMH cells are now charging merrily!  %-P

Rgds

Damon