jackbombay
2003 158" shc
So I got a new battery for my sprinter recently as I though the old one had a cell go bad, but the new one, after getting a full charge, went dead in 8 hours. This battery has to be at least an 80 Ah battery, to get that to 11 volts in 8 hours we're talking about a draw of 5+ amps.
So I hooked up my multimeter to the neg terminal of the battery and the negative lead to measure amp draw, the first time I did this it blew the 10 amp fuse in my multi meter, the second time it spiked to 8ever so briefly and then settled to .02 which is in the range of normal. According to my manual normal is .005 to .035. SO I hooked the battery back up after charging it again, and it was drained right quick again, how?
So today with the battery charged once again I hooked up my multimeter and let it set for several hours and checked it every 15 min or so, it was at .02 for a while and then dropped to nothing. I then unhooked the multi meter and checked voltage, 9 volts, how is that possible?
How is the battery getting drained so quick when supposedly only .02 amps are being drawn from it?
I let the battery sit after a charge for a day without the neg lead hooked up to it and ti held a charge fine, fwiw.
Anyone have any ideas?
So I hooked up my multimeter to the neg terminal of the battery and the negative lead to measure amp draw, the first time I did this it blew the 10 amp fuse in my multi meter, the second time it spiked to 8ever so briefly and then settled to .02 which is in the range of normal. According to my manual normal is .005 to .035. SO I hooked the battery back up after charging it again, and it was drained right quick again, how?
So today with the battery charged once again I hooked up my multimeter and let it set for several hours and checked it every 15 min or so, it was at .02 for a while and then dropped to nothing. I then unhooked the multi meter and checked voltage, 9 volts, how is that possible?
How is the battery getting drained so quick when supposedly only .02 amps are being drawn from it?
I let the battery sit after a charge for a day without the neg lead hooked up to it and ti held a charge fine, fwiw.
Anyone have any ideas?