M1236 charge time

[upchuck1383]

I recently bought a boat that has 2 36v lithium batteries hooked up to a M1236 charging unit. The last 2 days out my TM has run out of juice. Last night I had the cranking battery charging for about 10 hours before heading out this AM. I managed about 3 hours of TM time before it shut off. Thankfully due to it being wired so I can jump off the lithiums, I can also run the TM off the cranking battery in a pinch.

How long will it need to sit on the charger to get those lithiums back to 100%? I typically spend more time on the TM then I do running, so getting minimal charge on the water. THanks.

[Kilroy_was_here]

I called Stealth 1 chargers who manufacture the M1236. After several trouble shooting steps he identified my on board charger voltage was not getting high enough to kick on the M1236. I ended up buying his AC/DC combo and everything works great now. I'm in York if you want to check out my set up.