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04/8/2022 at 3:44pm
Location: London
Outfit: Lunar Cosmos 524
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How long do they last? - how long is a piece of string? Very much depends on how well you look after them and the quality of the battery in the first place! 5 years old is not automatically at end of life, but an abused battery may be near dead in a year or so, a good one well maintained could give you ten years service.
With several car batteries, a couple of leisure batteries, and a boat battery to consider, a few years ago I invested in a battery condition/health meter to remove the uncertainty/anxiety - One very similar to this one: https://www.ebay.co.uk/itm/255042471511?hash=item3b61b74657:g:uTMAAOSwYT9hJcKY. There are others with similar functionality available.
It currently tells me my 6 year old 'spare' Leisure battery has a state of health figure of around 80% (compared to a new battery), which considering it hasn't been particularly well looked after (it should have been charged more regularly/on a trickle charge!) is not bad, my 5 year old caravan battery shows 98% state of health, as it lives with a solar trickle charger maintaining it. Both batteries perform well under load, and keep their charge in use, so no reason not to believe the meter. It's NOT a simple volt meter, volts alone tell you very little, it does a discharge analysis in relation to battery type, capacity, state of charge, in/out of vehicle (on/off load) etc. to assess the battery health.
You can do a crude comparative test with a voltmeter and known load over a period of time to give some insight into a battery's health, but the meter simplifies it into a 30 second entirely repeatable test. I figured it would pay for itself by saving me the cost of a new battery when not really required, or preventing me being caught out with a dead battery. Worked for me so far!
You can of course do as Flat at did and get a battery supplier to test it for you, hoping they are honest with what they tell you.
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Topic: Battery
via mobile 04/8/2022 at 12:07pm
