DIY: Voltphreaks Lithium Battery installation into M3 E92

slicer wrote

I have not had any electronic issues with VPH battery either. I did have the car coded for the battery - changing the setting to AGM (I can't recall exactly but changed the battery type designation). Did you do that step?

Yes I did. I think the VPH guy recommended the lowest (45ah?) setting, but I don't recall precisely the setting value(s) now, only that I did that step

I just had to remove my VPH1200 battery and reinstall a regular AC delco AGM battery to get pass some electrical problem I had with my ABS system. The battery is 1 1/2y old and measures 13.2V fully charged (engine off), and keeps it voltage for a longggg time.

However, my car is parked outside all year round, in NY. And someone told me that the voltage from this battery can fluctuate quite a bit in cold weather and that may explain why I could not get rid of my four ABS codes (one of which complained about low voltage), which wouldn't go away after getting reset but disappeared (except for one) after installing the AC Delco battery.

Anyone else seen anything like this?

cmichaelo wrote

I just had to remove my VPH1200 battery and reinstall a regular AC delco AGM battery to get pass some electrical problem I had with my ABS system. The battery is 1 1/2y old and measures 13.2V fully charged (engine off), and keeps it voltage for a longggg time.

However, my car is parked outside all year round, in NY. And someone told me that the voltage from this battery can fluctuate quite a bit in cold weather and that may explain why I could not get rid of my four ABS codes (one of which complained about low voltage), which wouldn't go away after getting reset but disappeared (except for one) after installing the AC Delco battery.

Anyone else seen anything like this?

Anyone had any electrically odd problems, like with the ABS system, after installing their VP battery?

Thread resurrection

I've installed the VP1200 in my E90 M3.
I will code the car to 40Ah AGM

So far so good! Thank you Richbot for all the updates in the thread!

For reference, my E90 had the stock battery which was still going strong after 9 years.

That battery belongs in a museum, 9 years, jeez

4.5 years and counting on this thing. I never really even think about it anymore

Richbot wrote

That battery belongs in a museum, 9 years, jeez

4.5 years and counting on this thing. I never really even think about it anymore

I'm on original production 9/09 battery. 😳 That's why I'm on this thread. Ha!

Richbot wrote

That battery belongs in a museum, 9 years, jeez

4.5 years and counting on this thing. I never really even think about it anymore

7 years and counting on the Voltphreaks. I put the car on a tender if it's going to get cold and sit for a long time, but otherwise I don't even bother. It just works.

I hve a VPH1200 for 6 years and still going strong... or maybe not.

I'm starting to see some occasional fault codes, like for the alarm, sunroof and seat electronics. They come and go and seem to have no real meaning behind them as everythingh functions just fine.

At no load the terminal voltage is 13.19V. This is fine. But during cranking it dips below 10V. This, I believe, is not good.

What do you guys think?

Btw, the voltphreaks.com website no longer exists since around december 2023.

Does anyone know what happened to this company?

I've found the same thing, their website doesn't exist.

What a pity. Great products. Like an OEM replacement!

Thinking about purchasing one that has gone unused, unsure of age but do you guys think it matters? Its a gamble as the company is no longer around and can't support it but 52lbs is significant and it seems like these are better than factory batteries. I don't drive the car in the colder months so no issues there. Includes a nice bracket too that mounts using the factorie threaded holes in battery tray.

This battery is still going in my car after 10 years. If you're considering an appropriately sized LiFePo battery for your E90M, do it unless you drive in the sub-freezing cold a lot. The number of issues I have *not* had with this car because it never has an undervolt from a weak vampire-drained AGM battery is hard to quantify, but based on the two OEM batteries it went through in its first 8 years of life, and the number of weird module freakouts it had during that time, I'd say it's been worth the money even if it saved zero pounds, but it didn't save zero, it saved about 50

My VPH1200, now 10y old and residing in a car parked outside year round in NY state, is still going strong.

The car can remain parked for 4 weeks and it'll still start up. After that, the auto shut off kicks in.

Just phenomenal.

The problems I thought I had a while back, after 6y, were probably not from the battery because I've not had any problems since that would indicate a battery problem.