Suitable Genny for Ctek charger?

[Nikki]

Hi,
Please can the technically minded just check I'm right in thinking that a Honda Eu10i would be suitable to work with Ctek M200 battery charger (15a max) just to charge 2 varta onboard batteries ( the 95 amp ones)
Appreciate your help
Nikki

 

[PhilandMena]

I would think so. The Genny output is 220/240 Volts and should be OK with the CTEC. Just check the specs !

 

[Nikki]

Yea that's the problem, I'm not too bright in that department, and can't find or work out how many amps is produced by the genny

 

[pappajohn]

can't find or work out how many amps is produced by the genny

The genny will probably be 900 watts continuous.
900w ÷ 240v = 3.75amps

But thats more than enough to run your charger.
The chargers output is 15amps at 12v but the input may only be 1amp at 240v or even less.

 

[ambulancekidd]

I'm no expert with battery chargers but, my Honda Eu generator has a 12v charging point built in although I've never used it, I do have the cable, leads & crocodile clips.

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[pappajohn]

I'm no expert with battery chargers but, my Honda Eu generator has a 12v charging point built in although I've never used it, I do have the cable, leads & crocodile clips.

They do.... But most are only 8amps

 

[tacr2man]

The eu 1000 only puts out 8a at 12v same with 2200i

 

[ambulancekidd]

They do.... But most are only 8amps

Thanks mate, we live & learn.

The eu 1000 only puts out 8a at 12v same with 2200i

Every day is a schoolday, thanks.

 

[Nikki]

Brilliant, thanks pappajohn

 

[bigtwin]

Is there a reason that you don’t connect the generator to the MH with a normal hookup cable and use the onboard charger?

Ian

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[Nikki]

That is exactly what I'm going to do!

 

[autorouter]

If your two 95 amp-hour batteries are 50% discharged, you will need to supply 95 amp-hours of charge to fill them up again. Your CTEK charger is charging at 15 amps, so it will need 95/15 = 6.3 hours to fill up your batteries. Probably more like 7 or 8 hours actually, because the amps reduces when the batteries are about 80% full.

The CTEK charger at 15 amps will be consuming 12 x 15 = 180 watts,or probably just over 200 watts allowing for inefficiencies. So, to summarise, the generator will be putting out 200 watts for nearly 8 hours. That's one reason why using a generator to charge batteries is not the best solution.

A better solution would be a charger of 38 amps, which would fill up the batteries in about 3 hours. It would be consuming about 500 watts, which is still well within the capacity of the generator. Charging at more than 38 amps would not be good for two 95Ah batteries.

 

[Nikki]

Brilliant info thanks autorouter
I see your point exactly, and agree if I were going to let the batteries get that low that a bigger charger would be in order, but this will be for regular topping up of them , not waiting till it's too late so to speak