Sunday, Nov 22, 2015 at 22:48
This is a bit of a contravercial topic.
In theory it should be fine to leave a battery on a good charger indefinitely.
There are systems out there in the communications and burgular alarm industries that leave batteries on charge their whole lives and they get very long service lives out of their batteries.
There are however a couple of things to consider.
Many of these so called "smart chargers" can have some problems ...... the various smart charger manufacturers all have different ideas about how these things should work and the voltages involved ..... this does not always agree with manufacturer recomendations.
There have been quite a number of cases of computer bassed smart chargers either getting confused or going faulty and boiling the stuffings out of batteries in short order.
There is also the fact that sooner or later your battery WILL fail .... how the smart charger responds to that can vary ........ worst case the battery can boil dry, overheat and explode.
THE #1 message is ...... don't put ya battery on long term charge and forget about it ....... regardless you would be wise to
check the terminal voltage at least weekly and give the actual battery a look and feel.
Personally I will no longer leave a battery on a computer bassed smart charger long term ...... I have several decent old school analogue voltage regulated chargers of various sizes that I use for long term charging ........ a basic 3 terminal regulator bassed charger will give a "two stage charge" ...... delivering its maximum current till the battery reaches voltage and then reverting to a float charge .......... actually nothing smart or inteligent about it. ... but it is very reliable and long term viable.
Because most of
mine are custom built I can vary the charge voltage as required.
There is also one other thing to consider ....... if you have healthy modern batteries and they are stored completely off load ( issolated) they should hold a good charge for at least a month or two without a charger.
I can see a very good argument for giving ya batteries a good 48hour charge when you get
home and then leaving them alone except for a once a month charge and a good 48 hour charge before the next trip.
this gives you the opportunity to observe how
well those batteries are holding charge over time ....... If they are not holding a fair charge for 30 days ....... that is advance notice that they are getting tired and may fail soon.
cheers
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