Thread: WORLD'S BEST BATTERY CHARGERS

Originally Posted by drivesafe

Hi Kevin and while I would like you to buy the biggest one, because I make more profit, for the sake of your batteries longevity, work out how much time you will have available to charge your batteries and then pick a charger that will take your batteries from flat to fully charged in the time available.

For example, if you do a lot of free camping and intend to recharge your batteries using a generator, then go for the biggest charger you can.

On the other hand, and this would be the case in most RV uses, say you are never likely to need to fast charge and you only need to charge the batteries overnight while at a powered campsite, then again, work out how much time you have to bring your batteries from a flat state to fully charged.

Then roughly calculate how much power you will need to operate your 12v appliances while you are at a powered site and average this this out over the same time frame.

Add the two power requirements together and pick a charger size that will best meet your needs.

If you are only ever going to use the charger at home to maintain your batteries, go for a 10 or 15 amp charger. In this type of situation, where you have plenty of time available, the slower you can charge your batteries, the better it is for your batteries.

thanks tim

most of the time its when i'm at home i can plug the camper trailer into power and frget about till my next trip.

i don't like generators but do have a selection of solar panels so i will be watching for your answer to lotz-a-landies question

i plan to overn night in caravan parks 12+ hours of charging min. 200amps (they wont be flat as i would have been driving) devide by 12 = 16amp charger, sure 1 x 40L engel fridge wil be running with a light or two max.

20amp unit should suit my needs? or would that be overkill? maybe the 15amp would do......

one last quaestion, do i need to press any buttons each time i connect to mains? or does it remember its settings so i can run a lead, turn it on and walk away?

Hi Kevin and a 15 amp charger would be fine, also consider your future needs. That I will leave up to you.

Once you have set up your charger, when you turn the AC power off, the next time you turn the AC on again, the charger will go though it’s Self-Diagnostics routine and then will start charging your battery based on the last settings you programmed.

Other than turning on the AC, you need to do nothing else for the charger to start charging your battery(s).

Originally Posted by drivesafe

Hi Kevin and a 15 amp charger would be fine, also consider your future needs. That I will leave up to you.

Once you have set up your charger, when you turn the AC power off, the next time you turn the AC on again, the charger will go though it’s Self-Diagnostics routine and then will start charging your battery based on the last settings you programmed.

Other than turning on the AC, you need to do nothing else for the charger to start charging your battery(s).

thanks Tim.......

Hi
Do these chargers have temperature sensors or safety timers?

I have a very good brand multi stage charger at 20A but have suffered an AGM battery get hot during charging to the point of not not triggering the voltage peak and just get hotter and hotter! Was too hot to touch and $360 battery stuffed!

I now use a separate timer and thermal alarm too. But would pay for a really smart charger that never stuffs up.
Thanks
James


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So lets say I have a 4wd cranking battery, a deep cycle battery, and a motorcycle battery. And wanted to be able to charge these.

batteries are gel / AGM types.

Which unit is required? Do these work both ways - eg charge a battery hooked up only to the charger and/or trickle charge while battery still connected to vehicle.

I ask because I have a rarely ridden bike for which I need a trickle charger, and while these are available cheaply - a unit that could also offer the flexibility to recharge car batteries would be useful.

Hi Vlad and yes you can do that, this is where the user programable mode comes in handy.

You simple set it up for what you want and the setting remains, even when the AC power is turned off.

Drive safe
these look like great quality units

My application would be hooking up 2 sets of batteries ..at one time?
1) 2 x large N70Z cranking batteries in my boat - left idle in winter etc
2) 1 x large N70ZZ(?)cranking Battery in D2 - often left for weeks unused

can I hook one of these units up to both sets at once - set and forget especially If I am away for 4-6weeks ??

if so...i would be in the market for one...

Nobby