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04-07-2022, 09:09 AM | #1 |
Scooby Specialist
Member#: 400078
Join Date: Aug 2014
Chapter/Region:
South East
Location: hampstead/nc
Vehicle:1998 2.5rs06wrx swap black |
Battery drain
I have a shorai battery lfx36. It drains down to 13.12 within 48 hrs. It should have a 12ah rating since theyre 1/3 of the normal rating. I tested for parasitic draw and only got 25 ma but the battery drains like it has a 150 ma draw.
Any idea on whati can do to figure out why the battery is draing so fast.its only 7-8 months old only been on the car 4-5 out of those. I tried emailling shorai and got no response.
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04-12-2022, 03:28 PM | #2 |
Scooby Newbie
Member#: 385434
Join Date: Mar 2014
Location: Yorkshire, UK.
Vehicle:2002 Impreza WRX Blue Black 08V |
I found this useful for a similar problem:
https://forums.nasioc.com/forums/showthread.php?t=2855868 |
05-03-2022, 08:18 AM | #3 |
Scooby Newbie
Member#: 529876
Join Date: May 2022
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Since you have a low parasitic draw, it is the battery. But how are you measuring your parasitic draw? The car takes a while to go to sleep, are you leaving it hooked to a multimeter through amp draw mode for. a few hours and monitoring it? It may show 25ma draw for a few minutes then 1 hour later a higher draw might start. Look up voltage drop test over the fuses to try diagnose it that way
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08-19-2022, 05:56 PM | #4 | |
Scooby Specialist
Member#: 400078
Join Date: Aug 2014
Chapter/Region:
South East
Location: hampstead/nc
Vehicle:1998 2.5rs06wrx swap black |
Quote:
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08-22-2022, 10:16 AM | #5 |
Scooby Guru
Member#: 53443
Join Date: Jan 2004
Location: Anchorage, AK
Vehicle:2001 LL Bean Outback Winestone |
If the battery voltage is only dropping down to around 13.15 volts, I think you are chasing ghosts. That is a good voltage to be at for a fully charged battery in good condition. A current draw of 25 ma. is a normal current draw after things have gone into the sleep mode. If the battery voltage got down to around 12.4 volts after a week of setting, then I would say you have a small problem.
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09-24-2022, 04:11 PM | #6 |
Scooby Newbie
Member#: 131702
Join Date: Nov 2006
Chapter/Region:
Tri-State
Location: NJ
Vehicle:2017 WRX Premium CWP |
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