davemercedes
Senior Member
- Joined
- Jun 15, 2012
- Messages
- 4,345
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- Glos
- Your Mercedes
- 2007 Merc 220 CDi Est Auto Av (s203)
I replaced both my original batteries just over 12 Months ago when they were losing charge, still starting the car at 12.2v but with winter approaching decided to replace anyway, took off the tops, topped up the electrolyte with between 125-150ml in each cell with deionised water and they're still performing well with good autonomy in a back-up power application I have at home, you just need a little more brute force and ignorance with the tops.
Tony:
Glad you got out of trouble! It's really worth putting one of these (or similar) on your Christmas stocking list: -
https://www.amazon.co.uk/BuTure-Por...b+battery+jump+starter&qid=1606502012&sr=8-48
Our daughter bought us one last Christmas (it was branded Power R U) and the one in the above link was the closest clone...) It saved my life with SWMBOs car that stands in our garage week in week out and surprisingly three months ago my S203 refused to start but jumped into life as soon as I tried it with the jumper. I wouldn't be without it now and iy will boost mobile phpnes too. They do vary in price enormously - I think ours was an offer on Amazon at the time but e.g.: this one on FleaBay is just £24.95:
https://www.ebay.co.uk/itm/20000mAh...742659?hash=item1f16288dc3:g:YrEAAOSw~5RfWe6K