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In reply to Post #14
A multi meter will allow you to find the voltage of your batteries, presumably within the range Jason mentions below in post 6.
You don't have to buy a expensive one, mine has a on off you then select V (DC) a range if there is one, ie, 10v, 20v etc, best chosing just over the expected battery voltage, connect the multi meter + & - to the same on the battery and it'll show you the voltage of them.
Some chargers will show the voltage when charging too.
Skip to 1.05 min here, just a link chosen at random.
LINKY POO™ https://www.youtube.com/watch?v=weBp61J4obg
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moving forwards does anyone have a link so I can test them in future - multi meter someone mentioned which means nothing to me
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In reply to Post #1
Not sure it's relevant but I was told not to store fully charged, more like 2/3rds as it can damage the battery storing long term fully charged.
I'm referring to my Carp Lounge lions, 6 years old used once a year for 3 years, rest of the time stored.
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In reply to Post #1
A cheap multi meter will do the job
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In reply to Post #10
im sending it back ti battrery masters will update on there findings
thanks for tips lads
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In reply to Post #9
Does the barrow use both batteries at the same time?
If one has issues then i presume one on it's own is not providing enough power, especially if the barrow is 24V hence using 2x12v
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In reply to Post #5
Yes exactly the same the_andyman
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In reply to Post #4
@belch yes I recall we ordered about the same time and had the issue getting the charger with the led ion
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In reply to Post #6
yes they are the batteries listed below I got them on the recommendations here originally from battery masters and I am using the chargers that were supplied - the ones with tyhe led that goes from green to red when charged, Ive tried switching chargers and makes no difference and I used a cheap battery tester from my pal last night - when i connect the terminals one battery showed 100% the other didnt register so I can only conclude its a fault with the battery by process of elimination
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Battery is fairly small
10Ah × 12V = 120Wh total energy
In real use: = 100Wh usable
So a 10W device = 10 hours
Why they are not lasting ?
Using the wrong power supply a lead acid one or cheap one (not for this tech)
If you are - they are only likely charging to 13.8V so never reaching max capacity
Max capacity voltage for these batteries is reached at 14.4 to 14.6V
These batteries don't like fast charging either - Ideal: 2"“5A for a 10Ah battery with a charge rate of 0.2C"“0.5C to maintain the lifespan of them.
Just my inputs.
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| | | Belch | | Posts: 4475 |  | | MODERATOR | |
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In reply to Post #1
Not good news - mine are a similar age!
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In reply to Post #2
Thanks for the response
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As your batteries have BMS I'd recommend this one
https://uk.farnell.com/duratool/d03406/battery-tester-12v-lead-acid-li/dp/3617677
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I brought a couple of lithium batteries from batterymasters a couple of years ago - reckon ive charged them a dozen maybe 15 times but I went to se my barrow at the weekend and it died shortly after leaving the car park so I had to push manually (Jeez you forget how hard it is pushing a barrow loaded)
Anyway I put them on charge when I returned home and the led on the charger turned green from red but still nothing when connected to my barrow so Im looking to get a tester of some sort to see if there is anything going on before reaching out to battery masters - or change the chargers maybe?
I have ultramax batteries 12v 10ah x2
Does anyone have one you recommend or any other ideas what may be wrong
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Tackle