|
|
|
2010 2011 BMW 5 Series Forum F10 Power supply while using ISTA |
|
Post Reply |
|
Thread Tools | Search this Thread |
08-10-2023, 10:01 AM | #1 |
Private First Class
56
Rep 172
Posts |
Power supply while using ISTA
I began learning how to use ISTA on my F10 a few weeks ago and was constantly getting the error that my battery was below 12.55v. I was due for a new one anyway so I bought a BMW battery from the dealership and used my AGM charger/power supply to bring it to full charge. When running ISTA, I also use a Battery Tender power supply . Even with a new battery and this charger hooked up I get the low voltage error. I've tried all of the settings on the charger. I find it odd that I would need to charge this new battery for a few hours before every ISTA run.
My battery reads between 12.1-12.3v, over 14v with the engine running. Did I waste $135 on this AGM charger/power supply? What are you using? I need to reliably run ISTA as I do most of my own maintenance. |
08-11-2023, 12:59 PM | #2 |
Major
511
Rep 1,357
Posts |
You need a power supply, not a battery charger. BMW recommend at least 50A power supply.
I use a modified server power supply. This link have good instructions how to make one yourself. https://www.e90post.com/forums/showthread.php?t=1838716 If you don’t want to modify one, you can use something like this that will put out just enough for coding. You will need to get a cheap jumper cable and attach to it. https://wfcoelectronics.com/product/...erter-charger/ |
Appreciate
0
|
08-11-2023, 01:54 PM | #3 | |
Private First Class
56
Rep 172
Posts |
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|