Charging Method:
Charge the batteries at least once every six months, if they are stored at 25°C
Means if not connected to a powerchair. If they are stored and connected do it every few weeks 24 hours even if the chair is turned off.
So ignore this charge info.
For moderate normal cyclic use, set the ZXD Shirley charger to say 12A max if XLR connector, or 25A if connected via Anderson connector, and set volts to 28.80V. Set it to transition to FLOAT at a lower voltage of 27.2V when the current drops to 0.2 to 0.3Amps. And then allow it to charge for 24h to several days now and again. And overnight every night until you must disconnect it to get up.
The idea is that it will spend around 8 hours at 28.8V and then drop to 27.2V.
And top up during the day for 30 mins, 1 hour, or whatever, whenever you get chance as well.