AGM Batteries won't hold a charge
I've gotten ahold of 2 AGM batteries, but they don't seem to hold a charge... One shows almost 0 volts, while the other shows about 2.2 volts. What can cause this, and what can be done about it? Also, there is an onboard 24v charger that has 0 output, and I see no fuse on the body. All these things are on a Pride Dynamo electric scooter.
The batteries may have been left discharged. It may help by leaving them on the charger for a few days. Where did you get the batteries?
Measure the battery voltage while on the charger if you can. Some chargers need feedback from the batteries before starting, so they might measure 0 open circuit voltage. It is also possible that the charger is bad.