EOS0610i charging too slow

[yuri]

Hi, I´m charging my 2 Zippy 6s 4000mAh packs with my EOS0610i, have set of course it to charge at 4 Amps, and it takes to charge each one of them up to 110 minutes, since it´s always charging at around 2-3 amps, it never gets up to 4 amps. I remember when I used to charge my maxamps with my multiplex charger and the lba10 balancer that it was always taking it up to the amps I had marked, but now it won´t happen... Any ideas?

Maybe it´s the power supply I´m using at home, it´s only 12V 7,5A and it´s a small one but I´ve had the same issue when charging with my 1:1 car battery, and that´s a big one! BTW I´m always changing the config according to the power supply I´m using.

[bl-is-future]

your psu is too small. At only 12v and 7.5a it can only handle 90 watts output and that doeant even include efficiency. Here is a tool to select a proper psu that can charge your lipo at the max 4a. http://scriptasylum.com/rc_speed/_charger.html if it doesnt show your charger right away just select it from the drop down and it will fill in every thing then hit calculate. Look at the charts to select a psu to either handle the max of the charger itself or just the max to charge the battery at 4a

[yuri]

And what about the 1:1 battery? They can easily take 20 amps, don't they?

[bl-is-future]

yeah but that is not constant. A slow charge is usually 2a fast charge 10a and jump start 40a. Either way that PSU only puts out 90w with 100% efficiancy and that is no where near enough to charge a 6s lipo at 4a. according to the chart your PSU at 12v would needs at LEAST 26a output and 32a for headroom.

[BrianG]

A 1:1 battery typically charges at 14.4v. The current you charge that battery with will depend on the power supply. However, why not use a cheaper car battery charger for that one? Those types are not nearly as "clean" power, but a SLA battery doesn't need a charger with as stringent power needs as lipos do.

[bl-is-future]

^^^ and your 6s is 22.2v which almost double the car battery at 14.4v

[yuri]

Ok looking for a PS, too bad I won't be able to charge fast while on the circuit, I'm needing one extra pack...

Thank you guys!!!

The EOS0610 has a setting where you can set your power supplies maximum output current potential. If this setting was to low it could cause your charger to limit your charge current.
Check out the manual HERE.

[yuri]

Originally Posted by Countryhick

The EOS0610 has a setting where you can set your power supplies maximum output current potential. If this setting was to low it could cause your charger to limit your charge current.
Check out the manual HERE.

Yes I have set it according to the PS I´ve been using and have changed it each time I used the 1:1 battery...

Guys, he was using the 1:1 batt as the DC source - he wasn't charging it.

Something is set up wrong in your charger, or there is something wrong with your charger. You are using the supplied charging leads that came with the charger correct?

[yuri]

Nope, boutht it used without them, using new ones that I bought later with deans, got rid of deans and soldered bullet connectors.

The charger is sensitive to the resistance of the power leads. I was trying one the other night and I could charge at all - it was for a tx batt with a male servo connection. This is a prebuilt adapter I bought for my Ice charger to charge rx batts and its 24" long and servo wire gauge. I tried to connect to my tx batt to charge it from my 0610i and it kept giveing me an error. I tried a diff charge lead made it 14ga wire and only 2" of teh servo wire - that worked.

If your leads have some resistance, the charger my be reducing the amps?? The charger does this for safety reasons and I'm not sure what else it does for safety. As long as the leads you're using are 14ga or better that should be ok. Have you dnloaded the manual (4 page) and checked the setup? If you've done all that, time to see about service, something's not right. Mine hasn't done anything like that - I've charged a123s as high as 8amps with no prob.

[tc3_racer_001]

i charged 4s a123 @ 10A without probs, id suggest updating the firmware and seeing what else may be wrong... it may just be an error - unless you cant charge anything else liek that at all..

stupid question, but does the charger have a built in psu, if it does, this is your issue... 50W max... worth an ask!

Originally Posted by bl-is-future

yeah but that is not constant. A slow charge is usually 2a fast charge 10a and jump start 40a. Either way that PSU only puts out 90w with 100% efficiancy and that is no where near enough to charge a 6s lipo at 4a. according to the chart your PSU at 12v would needs at LEAST 26a output and 32a for headroom.

you dont need that much current to charge a 6s 4000 pack, the 26/32 amp number would be to get the full 250 watts the charger is capable of, you could get by with a 10 amp ps..I use the Ofna 18 amp 14v PS and it more than enough for a 6s 5000pack

yuri is your charger the 0610iNet charger or the AC/DC 0610i charger?

The AC/DC charger outputs only 50watts no matter how big your power supply is. Things are working like they are supposed to if this is the one you've got. If you have the 0610iNet which is a DC only charger rated for 250watts, then you've got a prob somewhere.

tc3_racer_001 - I wasn't implying that a123s are limited to 8amps.....they can take a lot more than that.