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Old 06-25-2020, 02:46 PM
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Question
Charging 2S Li-Ion (no balance leads!) with iCharger 3010b?

I have some new 2600mAh 2S Li-Ions (Tenergy) without balance leads and am trying to find some info on charging them with the iCharger 3010b. I've done a fair amount of Googling with no success, and also searched FG.

I'm guessing there are some settings for Pb or NiMH that would do the trick but I really don't want to take a shot in the dark on this.

So what settings or other workarounds do you battery/charging gurus suggest?

Thanks a bunch!!
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Old 06-25-2020, 03:32 PM
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I'd have to drag my charger out of the truck and set it up but i thought you could charge lithium without balancing?

I wouldn't play games and try it with another chemistry
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Old 06-25-2020, 03:54 PM
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There is a LiOn setting in the charger. I think you have to go into settings, and change the voltage from 3.7V to 3.6V. Then charge your pack.
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Old 06-25-2020, 05:16 PM
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Change the charger from auto cell count and enter the # of cells.
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Old 06-25-2020, 06:30 PM
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Pretty sure you don't have to change to 3.6 volts. Most lithium ion a are also 3.7 v. Tenergy lists their lithium ions as 3.7. I have heard of the 3.6 v lithium, just never seen it.
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Old 06-25-2020, 07:17 PM
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OK found the LI-Io setting but warning msg for Low voltage...
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Old 06-25-2020, 07:25 PM
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Thanks all for the advice.

Got it working. It was a combo of my ignorance (yes, I overlooked the Li-Io setting) and an old adapter extension that had plum worn out. Wire or pin or some such but I soldered up a new one.

Charging now at 0.5C (1.3A) and all's right in the world.
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Old 06-27-2020, 02:34 PM
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Quote:
Originally Posted by bobmny105 View Post
Thanks all for the advice.

Got it working. It was a combo of my ignorance (yes, I overlooked the Li-Io setting) and an old adapter extension that had plum worn out. Wire or pin or some such but I soldered up a new one.

Charging now at 0.5C (1.3A) and all's right in the world.
Just a thought here, but watch the packs if you charge at less the 1C...
If you have a time-out feature enabled on your charger(many are 2hr by default but can be changed), the charger could time out before the pack is fully charged... in which case.. your pack won't be fully charged.

My friend thought he was being conservative and "easy" on his packs by charging at a rate much lower then 1C, and couldn't figure out why his packs didn't seem optimum. After discussing it, his "conservancy" was hindering his ability to gets his packs peaked, because his charger was timing out and he'd only get about 75% of a charge every time. He upped his rates to 1C for every pack, and all is well now.

I can't think of any reason why a lithium based pack would need to charge at .5C... and have always charged at 1C... but that's just me.. I'm very careful with my packs and charging, to the point of anal, and log every charge... which gives me a track record of data for each pack.

I'm just throwing it out as food for thought. This is part of the benefit of using lithium. They're not Nickel base batteries, and can usually take the loads easily.

Up to you though. Good luck with it.
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Last edited by DGrant; 06-27-2020 at 02:40 PM.
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Old 06-27-2020, 02:53 PM
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They're get'n lower mate.....
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0.5C half rated C charge is a slow charge ......nothing wrong with that
2.6A is your 1C rate
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Old 06-27-2020, 03:24 PM
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0.5C half rated C charge is a slow charge ......nothing wrong with that
2.6A is your 1C rate
Of course there's nothing wrong with it, unless your charger times out and you don't know it, .... in which case there would be something wrong.

Not everyone knows of the time-out features most of these chargers have... or that they can play a factor in getting a peak charge, depending on where your charge rate is set.

Most times no problem, but set the charge rate low, and try to charge a pack that needs alot of juice, it will time out.

Inhibit or adjust the time out feature on your charger and you can charge all day if that's what floats your boat, or don't and see if it works out, and it just might, and it might not as well.... but it's just food for thought for someone that might use the information.

I'm not worried about it though. It's all good.
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Old 06-28-2020, 06:35 AM
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Also, look up the charge to voltage for your cell. Likely to be 4.2. However on LiLo setting your charger may only be charging to 4.1. that's a good bit of capacity between 4.1 and 4.2
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