12/10/2025
How long does it take for my stairlift to charge up the batteries?
T502 MCB Batteries charge up times
Well it largely depends on the battery, factors include 1. Battery condition, 2. Battery age, 3. Battery state of charge, Battery temperature
With the MCU managing the charging, at 0.35a = C1 on the display
7.0ahr battery *2 / 0.35a = 20hrs to charge up
But if the batteries are less than 8.0vdc and depleted of charge the MCU will struggle to start the charging process
If the display is showing C1 and when you try to run it, it runs slow and is stopping, drive it to the charge point and leave it there for at least 20hrs
The display should go to C4, then the MCU will try to condition the batteries to full charge
This all needs the time for this to happen
If the batteries do not pull up, then simply replace both batteries
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