Brammo Owners Forum

Brammo Enertia Discussion => Brammo Enertia Servicing => Topic started by: 09enertia on March 24, 2022, 01:56:35 AM

Title: Recharged and balanced six dead batteries
Post by: 09enertia on March 24, 2022, 01:56:35 AM

I'm reposting my response to another thread in case it helps anyone: I had left my Enertia unplugged for two years and it wouldn't turn on. Took out the six batteries and they were dead, no blinking lights. I used a simple 12 volt trickle charger to wake up each one and each red light started blinking. I then used a Noco genius 2 and charged each one for a day or two up to 50 - 80% but when I put them back in the bike they wouldn’t keep their charge, dropping about 3% per day. I took the batteries out again and charged them individually again all the way to full. Then I connected all the positive terminals with four gauge wire and all the negatives the same. Then attached the positive charger clamp to the first positive terminal and the negative charging clamp to the last negative terminal and charged them all together. This got them all really close to each other on the multimeter readings, around 14 volts. Then I took off the charger and let them rest still parallel for a day and they balanced perfectly around 13 volts. Put them back in the bike and now it charges and runs fine.

Title: Re: Recharged and balanced six dead batteries
Post by: moose600 on July 01, 2023, 10:47:28 AM

Nice!

Title: Re: Recharged and balanced six dead batteries
Post by: Korbin Dallas on July 06, 2023, 05:03:06 PM

Very interesting. could work on all batteries in different bikes.
Thank you for posting this.

Title: Re: Recharged and balanced six dead batteries
Post by: Epicurus on April 09, 2024, 07:57:44 PM

What kind of trickle charger did you use?