Do these need a special Charger? I left one on charge for 24 hours, nothing seemed to happen.
Thanks for the information.When you say that iffully discharged they will not recover they are scrap?No,, not in my experience. just use a conventional charger, as for lead acid batteries. They are very reliable, but if they have been fully discharged, and not recharged straight away, they will not recover.
Overcharging will also ruin them if it is prolonged. An indication if that has happened is that the concave base of each of the 3 cells becomes flat, or convex, and in severe cases, a safety feature under the Burlen or Enersys sticker should go off.
Yes, usually.Thanks for the information.When you say that iffully discharged they will not recover they are scrap?
Len, I've had these batteries fail on me, suddenly going open circuit. I believe these were intended for back up duties in fire alarms etc so might not like the shocks and vibrations they get when fitted on a bike.Do these need a special Charger? I left one on charge for 24 hours, nothing seemed to happen.