Recent content by kl3vr

Hello, looking for help with my 4s lishen 280ah battery pack with daly smart bms. Sometimes, but not always, when I'm charging the battery at 20ah I notice the charging gets into a loop of ramping up the amperage then disconnecting. It appears the "cell voltage difference disconnect" is...

I had done one when I first got the cells. this time I just charged up the "out" cell.

Thanks everyone for the advice! I singled out the low voltage cell and charge it up to match. its much more balanced now and the pack is resting at 14v when fully charged. I checked all the connections were tight. I also lowered my charging profile from 30amp to 20 amp which is a bit...

wonder why it fell out of balance? i'm not doing anything weird with them. Maybe the daly is pulling its power from one battery?

good point on the individual balancing.

Hello, I'm hoping this is the right area to post this. Ive been having trouble with charging my 280ah 4s battery pack. I have a Daly 200ah smartBMS and a kisae dmt1250 charger. using the DC charge setting and wired to my vehicle's alternator, the charger ramps up amperage then cuts off to zero...

its a "C" configuration with the B+ and B- at the one end nearest the BMS. it was easiest to have the B- terminal on top so the BMS lead doesnt cross over the B+ terminal. Using spacers between the batteries required longer busbars than the stock ones provided. I made some using 6AWG battery...

yea, I've ordered a Juntek shunt meter but kind of a bummer the app's SOC doesnt work. Glad I'm not the only one having this issue though.

is that SOC accurate John? mine shows 70% at fully charged still.

I should do a teardown, its much cleaner now. well its 4*272ah batteries, a Kisae Abso 50a charger, 200a smart BMS, dual temp controller some output USB's and XT60's, all crammed into a plano ammo case. The most unique part of the build is the temp controller, which has 2 temp probes and...

those two pins are there for this reason. when you get the BT turned on and can see the settings through the app, you'll get a bit more confidence in the BMS.

Mines a lot smaller than all yours haha

I had never heard that my battery needed to be fully charged to activate my bms... so I just went ahead and hooked everything up (series) to do my first charge, then disassembled to put in parallel with 3.6v charger to top balance, then re-assembled in series for final install. again, not an...

here's what was provided to me

I get the trepidation. Theres no indicator light, probably to reduce standby current. the UART port is right for the BT adapter. You should follow the procedure in the manual for connecting everything. I'm no expert, my first BMS as well, but here is what I did: Batteries should be charged up...