Well @clinkadink once youre out there and have a few quads a long drive away, and then you’re looking forward to going out, but unfortunately the guy with a generator has to pull out last minute…
OK. Serious question though on this. It’s a 70AH leisure battery, charging with my T200 on pB setting. I’ve set it to 3A charge, I assume takes a LONG time, also is this all safe. I don’t know what the final voltages will be for a “6 cell” lead acid battery (assume that’s what it is, has sulphuric acid in it!) Any suggestions on this please?
PS: As a side note, make sure you wire the red wire to the + plug on XT60 and black one to -ve… What a donut (thank god the chargers have safety mechanisms otherwise would have been a very spensive morning!)
Every standard lead-acid battery has a nominal cell voltage of 2 Volts.
Therefore every standard 12 Volt (e.g. traditional lead-acid car battery) has 6 cells.
“Leisure Batteries” are similar but slightly different to car batteries. Deep-cycle battery - Wikipedia (first paragraph)
You would use a Leisure Battery in your caravan, because it does not have to deliver the massive current needed to start a car engine.
As general power bank for drone charging, either will work (with an appropriate 12V input charger/adaptor). (The leisure battery is more appropriate if you are charging your drone many times.)
Cheers worked well in the field today. It got to full voltage yesterday. Using a couple of fully charged 4s lipos to back charge the leisure battery and cut off at 15.2v for storage. Heavy but if you there for hours as we were well worth it
Another question on looking after these. When it charged it did a “float” charge (I assume that’s a low amp get ti topped up) at the end. OK that’s fine, it took around 6 hours on I think a 3A charge (not a problem, can leave it ages). I back charged it from some full 4S’s when I got back, but haven’t touched it or topped it up since. It’s currently sitting on 12.9V.
When you use Lipos I know to storage charge them, Li-Ions don’t need to, but what about a leisure or car battery. I’ve heard trickle charging is a good thing? I’m going out at the weekend again do I need to bring it back to full charge, is it better I use that’s in there (how low can it go? 1.8 x 6 I assume? So 10.8V?) I see from the case it’s rated for 80 cycles, which should last a couple of years with the amount of times I’ll be going out and using it, and rarely (if ever) will I use it in full!
So in short I got 2.1V from the 12.9 to the 10.8 I calculated, I shouldn’t need to charge it before this weekend, but should I trickle/float it up? Or…
Thanks @Steviegeek so li ion (and tbh only have the one in the radio and one in goggles) basically treat same as lipo. Thoigub noticed full charge is 4.1. 1C charge rate too?
The lead acid. Excellent keep it topped up. Will shove it on charge then. Lovely advice as always
Just for reference really, and anyone else wondering about this topic, here was my final charged. I charged at 2A on a pb/6cell (said 12V when entered) setting, and that’s the final voltage
