Andy J

I had a YUASSA YBX5063 fitted into mine a couple of months ago.

Thank you all for your advice. I had a local garage run a diagnostic check and the main battery needed replacing - result, no more problems!

Thanks Larry. I was thinking that there might be some kind of parasitic drain but cannot find any obvious (visual) cause. The garage that I was recommended specialises in hybrid diagnostic https://swiftmotors.co.uk so hopefully (fingers crossed) they will be able to locate the cause.

Thank you for letting e join the group. I have been experiencing persistent difficulties in starting my 2007 Toyota Alphard Hybrid over the last few months. It has not been used that regularly and so I quite expected to initially have to jump start it. However, despite taking it out for runs to charge the battery, each time I leave it overnight it will only start with jump leads or a power pack. I have booked it in to a local garage for diagnostics. Does it sound as if the battery needs replacing or something else? I am not that experienced technically so any advice most gratefully received.