why is it hard on the charger?
Hi Phillip, it is actually very commonplace for 230vac battery chargers to have a short life when using them to charge Lithium batteries, even when the charger has a Lithium setting.
Lithium batteries are proving to be very had on most makes of 230vac battery chargers.
why is it hard on the charger?
A battery's low internal resistance means that a charger puts out full current for longer as the terminal voltage doesn't quickly rise towards the regulated maximum voltage of the charger. If a charger had a temp sensor that either started a cooling fan or reduced current it would cope much better.
I agree; this is simply a design flaw. Most chargers / power supplies can not output full power for longer periods of time. Undersized cooling, regulators and transformers (though most employ switching power supplies these days) are 99% of the problems with any charger / supply.
Cheers,
-P
As I posted earlier, I have no idea why there is a problem, and, without naming brands, I have heard of some well known brands having problems charging lithium’s.
I have been working with and testing lithium batteries since 2012 and I have only used Sterling battery chargers, and to date, I have not had a single problem.
I know of quite a few people ( including two AULRO members ) who have had problems with other brands of battery chargers when trying to charge lithium batteries, and they have changed over to a Sterling charger and have not looked back.
There is a RV company that appears regularly on the AULRO Facebook page, and they changed over to Sterling some time ago and the Sterling Battery to Battery chargers improved their setups over what the were achieving with a well known brand they had been using.
Could it be a case of the charger not having an effective fan to cool it for the higher charge required by lithiums?
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