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sln8458 · 30th October 2020, 12:44

I had the very same with the battery on my 75. (Ctek 7.0)
Green led, on float, battery was not strong enough to start the car.
Replaced the battery and all is fine.

The battery I removed still reads 12.5V on my multi-meter. The only thing I can think of is the liquid level in the cells has dropped, and while it is still showing fully charged it has become a lower rated battery. By that I mean it was a 780A 77Ah battery but now I suspect it is closer to 30Ah.

The charger is still seeing 12.5V so thinks all is well.

Just my 2d

30th October 2020, 12:44	#2
sln8458 Gets stuck in Rover 75 Contemporary SE 2.0 Diesel Auto 2005 Facelift Join Date: Dec 2010 Location: Norwich Posts: 589 Thanks: 90 Thanked 67 Times in 47 Posts	I had the very same with the battery on my 75. (Ctek 7.0) Green led, on float, battery was not strong enough to start the car. Replaced the battery and all is fine. The battery I removed still reads 12.5V on my multi-meter. The only thing I can think of is the liquid level in the cells has dropped, and while it is still showing fully charged it has become a lower rated battery. By that I mean it was a 780A 77Ah battery but now I suspect it is closer to 30Ah. The charger is still seeing 12.5V so thinks all is well. Just my 2d __________________ Mods Fitted: Cruise Control; FBH with GSM (was FrenchMike's Remote) & dash button; Rear Blind; In-line Thermostat; wired in front & rear cameras; Mercedes DRL +DRL2; twin horns, twin usb power outlets, digital coolant temperature readout, Real Walnut dash, Walnut & black leather steering wheel, Walnut Handbrake grip, Towbar with full Rover harness. Rear seat cup holders. Wanted: Walnut auto gear stick handle Mods to do: all done , need to come up with some more.