I think I have a bad battery.
I think I have a bad battery. I topped up the battery with deionzed water, set it up to charge in my garage on a wooden bench. The next day, I noticed a rotten egg smell and the case of the battery wa...
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Exact thing happened to us, but since our batteries were new in 2013, we replaced all four. In our case, we use distilled water and painstakingly took care of them, not overfilling, not overcharging. Then we took our unit in for extensive cosmetic work and it was in the shop for 6 months. We reminded them to monitor the batteries. On one trip in we noticed the front bay, where the batteries are stored, open. After bringing it home and dealing with the CO2 alarm going off and checking everything for a possible cause, we narrowed it down to the batteries off gassing, and boy were they off gassing. It's possible the techs didn't charge them correctly and they had the front bay open to keep the CO2 alarm from going off. Regardless, we replaced them all as 8 years is a long life. No odor and the CO2 alarms is now silent.
