juliusa
Active Member
Another update on my battery replacement by @Recell after driving for two weeks, 7000 miles, and a lot of supercharging.Update on my HV battery, 2013 MS 85, 275,000 miles. Got BMS_u029 "Charging Level Limited" message on January 17 while 160 miles from home. I limped home and started looking at options. In the meantime I continued using my car in "Leaf" mode - it would charge to 80 miles.
I decided to replace the battery rather than scrap the car. My highest priority was how long the pack would last (miles). I considered Tesla, 057 Tech, and @Recell. Gruber was too far, and I thought EG was no longer doing battery replacements.
As best I can tell, all three follow pretty much the same process of putting together packs based on similar good modules, and then swapping with your pack. Gruber seems to be different in they repair your pack by replacing cells or modules. I'm sure there are nuances, and each does it the way they think is best. Who provides better packs? Time will tell - I doubt many replacement packs have failed, and hard to draw conclusions with such a small sample size.
I quickly ruled out Tesla. My current replacement pack from them lasted 57,000 miles and they offered to do the same thing again. About 40% more expensive than the non-Tesla choices.
I communicated with 057 and recell, and ultimately decided on recell. Similar pricing, convenience of location, and I thought both were well qualified to do the work based on what others had posted. A friend had used 057 to pro-actively swap their pack and was very satisfied.
Recell could do the work right away, fixed price, and offered a warranty the same as Tesla - 4 years/50k miles. 057 was at least several weeks out, pricing dependent on condition of my battery, and no warranty - at least that was my understanding. I only had a few preliminary email exchanges with 057, so may have gotten part of it wrong.
January 27 (Friday) I signed an agreement with Recell.
January 28 (Saturday) Car carrier arrived and took my car. Recell arranged it.
February 3 (Friday) Car arrived at Recell (delayed by ice storm).
February 6 (Monday) Recell had replaced pack. Old pack diagnosis: One failed and one failing module.
February 7-9 Recell tested, conditioned, took it to a supercharger, and made sure everything was working properly.
February 9 Recell asked for payment. They had asked for no payment up to this point.
February 13 (2 days from now) I arrive San Antonio for pickup
The experience with Recell has been excellent. They respond to my emails right away, and also emailed me with progress updates and pictures. 2000 mile drive home will be a good shakedown!
The battery is awesome and exceeded my expectations. Still 250+ miles range, though I’ve only done a 100% charge once. Almost always keep it between 20% and 80%.
The pleasant surprise is it supercharges at 10kW higher than my old battery through the taper curve. My old battery was 242 miles at 100% before failure, and SOC+kW was around 99 in the 20% to 80% SOC range. Replacement is around 109 - 10% faster.
Of course, the real test is longevity. Stay tuned!