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Old Nov 13, 2013, 11:22 AM
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Brand new lipo battery. What's the procedure ?

Hey guys,

I'm very new to electrical rc, and this is the first time I use a lipo battery and charger.

I have a brand new lipo, 3s 2500 and a smart orion charger.

What is the procedure to charge it for the first time ? Should I plug it in and indicate the battery datas/values and pretend it's empty ? Or should I discharge it ?

I admit I have no idea how to proceed, and nothing tells it to me, neither in the charger or battery manual.

Thanks a lot for your help !

Patrick
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Old Nov 13, 2013, 11:25 AM
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United States, MN
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Give these two pages a read:
https://sites.google.com/site/tjingu...po-terminology
https://sites.google.com/site/tjingu...arging-process

There's lot of other good info on that site too.
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Old Nov 13, 2013, 11:34 AM
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Very good links. Thanks a lot. Saved in my favorites.

Now, I might be wrong, but they tell me about the first use (break in) of the battery etc, but they do not tell me if I can charge this lipo battery (3s 2500 11.1) like it was "discharged" or if the state it is currently in should be imputed into the charger.

I mean, can I just set the charger for a 3s, 11.1v 2500 (30c) battery and let it charge and balance it ?

Sorry if I sound dumb, but I'm really a noob about this here
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Old Nov 13, 2013, 12:13 PM
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just put in # of cells (3s) and charging amps (2.5A) and charge
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Old Nov 13, 2013, 12:22 PM
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Quote:
Originally Posted by cmdl View Post
just put in # of cells (3s) and charging amps (2.5A) and charge
Thank you Sir !
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Old Nov 13, 2013, 12:28 PM
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BEFORE you do anything, check the voltage of each cell. It should be about 3.85V +.01/-.04V.

It it's higher or lower, the pack may need replacement. DO THIS before charging or changing connectors etc. The vendor will be much more accommodating to replacing the pack if you haven't charged it and it's in the as recieved condition.
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Old Nov 13, 2013, 12:36 PM
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Quote:
Originally Posted by hoppy View Post
BEFORE you do anything, check the voltage of each cell. It should be about 3.85V +.01/-.04V.

It it's higher or lower, the pack may need replacement. DO THIS before charging or changing connectors etc. The vendor will be much more accommodating to replacing the pack if you haven't charged it and it's in the as recieved condition.
Too late.. The vendor is vry friendly though, and should there be an issue, he would fix that.

Btw, how am I supposed to check that ? Through the charger itself ?
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Old Nov 13, 2013, 12:55 PM
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I'm 30min into charge,

Should I be concerned with the indicated voltage ?

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Old Nov 13, 2013, 01:30 PM
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sorry, can't see your pic on my computer. the batt should charge to 12.6V.

ps - regarding the per cell voltage hoppy mentioned earlier, check your charger manual.
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Old Nov 13, 2013, 01:38 PM
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Seems alright. This is what I got when it was over.





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Old Nov 13, 2013, 02:07 PM
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That's fine. You have a fancy charger there. Sometimes chargers go slightly above the 3S 12.6 volts for a short time before they stop, when the charger drops back to displaying 12.6. Much more than 12.8 (one of mine briefly shows that, an old Astro Flight 'Lithium'). I have had it for 10 years and never a problem, for a few seconds and you could have a problem. But the charge current should be very low by then.

There isn't really a 'from new' procedure as different manufacturers have different 'storage voltage' ideas. Some are supplied nearly full, some nearly empty. Most are roughly in the middle, and in theory 2.9 volts per cell is supposed to be 'flat' without damage (so I have read), but I have never seen them that low. These are offload voltages of course, measured with a voltmeter. Don't bother, your charger appears to tell you anyway.
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Old Nov 13, 2013, 02:24 PM
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Yep. Charger looks cool.

Apparently I can charge up to 6S batteries. It's an Orion advantage touch.

Maybe I should have gotten something cheaper, but I wanted something [s]shung[/s]idiot-proof
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Old Nov 13, 2013, 04:01 PM
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Battery should have come 40-50% charged. Your charger shows 1195mah put back in. That could mean pack was over 50% charged as received, or pack capacity is a little low or the measurements are slightly in error but in any case, all looks good enough for our purposes. You may gain some capacity after a few cycles..

BTW, nice charger!
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Old Nov 13, 2013, 04:19 PM
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Agree that all appears fine with your new pack.

I would keep a watchful eye on whether the 30mV imbalance is a result of the pack or whether it's induced by the charger. If this persists on multiple packs, I would recalibrate individual cell termination voltage if it's possible with the Orion.

Mark
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Old Nov 13, 2013, 06:04 PM
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Thank you for your help gents,

Much appreciated !
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