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Stannah 420 battery connections
Hi All,
My deceased partner had a little used stairlift installed, the chair has a panel marked 420, which I assume is the model? Rather than remove it, as they have such little value, I kept it in case I might eventually need it, though it does sometimes prove handy for shifting heavy items up and down the stairs. Whilst still under maintenance contract, I discussed the lack of use, wasting energy and keeping the batteries charged, with the engineer. He suggested that I could switch the charger off, if the switch on the arm was also turned off – which would leave the batteries isolated – WRONG. It still flattened and wrecked the batteries, so I added a switch in series with the link, between the two batteries – not realising that there was a 12v tapping for something (???), so one battery still got flattened and wrecked.
Does anyone know what this separately fused 12v tapping is for please? I should still like to find an easy way to isolate the batteries. Does anyone have a circuit diagram for 420 please, there isn’t one anywhere on the unit.
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