BLACKMAMBA505

DNA 250 strangely low .16~.17a usb current limit.

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Need help. background info. I installed a new lipo changed the connector to match (xt30) looked good to me after it was done.

all the read outs check to me but the usb current limit. its been like 6 hours from 50% to 70% like wtf. .16a. i just don't know what could be the issue i should get minimum .5a.

250 .16a limit.jpg

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Update i let it charge overnight. since it would be another 6 hours or so. i woke up to find that the battery has drained to zero. but now the usb current is .23a rather .16a

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ok i took out the board cleaned it now the usb current is at .19a its hard stuck. i think there is something wrong. not sure what i can do anymore. the board was made in 2017.

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now i'm hearing it might be a blown fuse. after it charged last night the battery almost dropped to zero for i don't know what reason. though the usb current is now higher at .23 it's still low. and i've let it sit charging for hours and its still stuck at zero percent. even with usb battery recovery. the usb power is at 1.1 now. do you guys think it's the fuse?

blown fuse.png

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Not the fuse. Charging rate is probably going to be low using USB recovery till it gets to above 2.5 volts per cell.

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