Carbon Monoxide and Hydrogen

[David Tilston]

Recently my brother gave me six neglected 6 V golf cart batteries. They had not been charged in two years. The voltage was down to 3.7VDC each. After putting two in series, I put them on my smart battery charger. They charged, in my basement for two days at about 25 amps. Then the carbon monoxide detectors up-stairs started alarming while reading about 30ppm.

It turns out that carbon monoxide detectors are cross sensitive to hydrogen:
https://goodforgas.com/why-is-hydrog...or-co-sensors/

Guess I should charge them outside.

[Byron Kinnaman]

Originally Posted by David Tilston

Recently my brother gave me six neglected 6 V golf cart batteries. They had not been charged in two years. The voltage was down to 3.7VDC each. After putting two in series, I put them on my smart battery charger. They charged, in my basement for two days at about 25 amps. Then the carbon monoxide detectors up-stairs started alarming while reading about 30ppm.

It turns out that carbon monoxide detectors are cross sensitive to hydrogen:
https://goodforgas.com/why-is-hydrog...or-co-sensors/

Guess I should charge them outside.

I would say you're right to charge them outside unless you loud noises.

[David Tilston]

The only issue I had with that was it was mighty cold in Calgary recently, and batteries tend to freeze when they are nearly totally discharged.

It is nice now though. So outside the next two go.