Need to understand batteries

carr52 · Posted: Wed Jan 11, 2012 12:11 pm Post subject: Need to understand batteries

Howdy from SC
I'm sure everyone here has heard this before but I would like to know some more about batteries. Like what does 15C and 1C and stuff like that mean. Heck an old fart like me I'm doing good to check email and get it right. I tried to send a picture the other day and ended up sending it to myself. Go figure. I get the mah part. The higher the number the longer it will last. Oh well. Thank you for the help folks.
Tom

TonyD · Posted: Wed Jan 11, 2012 5:54 pm Post subject:

Hi Tom,

Betcha it is warmer in SC than it is here in NH where it is currently 4 degrees!

Anyways here is a web site that gives a good overview of LiPo batteries and chargers in addition to other information related to this hobby.

Battery Info
http://www.rchelicopterfun.com/rc-lipo-batteries.html

Main Site
http://www.rchelicopterfun.com/

Hope this helps!
_________________
Keep Em Flying

Anyhoo,
Tony

BlitzRCWorks Contra
Double Horse 9116
Blade mSR X

dasBlade450 · Posted: Wed Jan 11, 2012 7:48 pm Post subject:

Tony.....
OT...but.....did you ever get down to Concord to the Rt. 106 Hobby Shop??
if so.....what'd ya think???
Cheers!! (waiting on the Thursday storm....could be nasty!!! Mad

)
_________________
I'd Rather Be FLYING my Blade!

carr52 · Posted: Wed Jan 11, 2012 9:44 pm Post subject: Thanks for the information

Thanks Guys
I just want to know a little more about these little batteries. I'm use to working with my solar panel batteries but these are a whole new animal. What I'd like to do is be able to charge off my 12 volt system here in the house. Or in the field. Somebody probably makes one you can buy. I can always use the inverter oto plug into but the inverter uses battery power so I try to stay on 12 volt. Oh yeah it's 54 degrees and suppose to be 64 today but it's cold and rainy out so I'm staing in.
Tom

carr52 · Posted: Wed Jan 11, 2012 10:14 pm Post subject:

YoTony,
That was a great article on the care and feeding of lio batteries. Thank you very much.
Tom
Just went back to re-read the article. The C rating really blows my mind but I'll get my pea brain wrapped around it sooner or later. Thanks again for the link to the article.
Tom

TonyD · Posted: Thu Jan 12, 2012 2:38 am Post subject:

Hey Tom,

No problem, located on that web site is also a page explaining the various chargers / balance systems available for charging these new generation of batteries.

Anyhoo
_________________
Keep Em Flying

Anyhoo,
Tony

BlitzRCWorks Contra
Double Horse 9116
Blade mSR X

solentlife · Posted: Thu Jan 12, 2012 2:30 pm Post subject: Re: Need to understand batteries

carr52 · Posted: Thu Jan 12, 2012 8:26 pm Post subject:

Thanks folks, so from what I get from all this information is a slower longer charge is better and LiPo batteries are easy to ruinif you dont treat them right. I know they aint cheap so you can bet I'm gonna treat mine with love and care. Thanks again everyone for the help.
Tom

carr52 · Posted: Sun Jan 15, 2012 10:51 am Post subject: Where to buy batteries

I was wondering if anyone knew a good site to buy batteries for the mcx and the msrx. A lot of places have them on back order or not at all. Thanks all.
Tom
_________________
Esky Big Lama
Blade-MSR-X, Blade-MCX, Blade MCPX,
Xieda-9958, E sky-Nano
DH 9100, Alot of Syma's
Novus 125 FP

nick_onelove · Posted: Sun Jan 15, 2012 12:12 pm Post subject:

This is all I can find currently:

http://www.rcplanet.com/ProductDetails.asp?ProductCode=VNR1584&click=107101&Click=106800&gdftrk=gdfV23720_a_7c1734_a_7c7524_a_7cVNR1584

E-Flite has their own 150mAh, 25C batteries out now too, but they never seem to be in stock lately.
_________________
Align: Trex 250 3GX + Trex 450 Pro with Vbar
Blade: 450 X, mCP X, 120 SR, mSR X, CX3, mCX2
Esky: Belt-CP X and V2 - Futaba: Heli-Max Axe 400
Walkera: V500D01, M120D01, V100D08, DEVO 8
Spektrum: DX8 - AMA #967873 - IRCHA #4095

carr52 · Posted: Sun Jan 15, 2012 8:10 pm Post subject:

Thats great. Thanks Nick. These things are hard to find at a decent price. Thanks again. Now I just need to find a charger that can charge more than one at a time. E-flite use to include a 4 port charger in the msr original. I might have to make a run back into the city to the hobby shop. Hate going into town.
Tom
_________________
Esky Big Lama
Blade-MSR-X, Blade-MCX, Blade MCPX,
Xieda-9958, E sky-Nano
DH 9100, Alot of Syma's
Novus 125 FP

carr52 · Posted: Tue Jan 17, 2012 7:00 pm Post subject:

Good morning all. Was just charging an eflite battery on the usb charger and decided to stop and check the voltage on it. The light hadn't gone out on the cable yet to show it being done but checked anyway. Tester showed 4.5 volts. That can't be good for the battery can it? Voltage that high I mean.
Tom
_________________
Esky Big Lama
Blade-MSR-X, Blade-MCX, Blade MCPX,
Xieda-9958, E sky-Nano
DH 9100, Alot of Syma's
Novus 125 FP

tombo242 · Posted: Wed Jan 18, 2012 5:47 am Post subject:

No way should it be that high Tom. 4.2V max is the correct high charge level.

Tom.
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Keep Smiling Smile

carr52 · Posted: Sun Jan 22, 2012 10:56 pm Post subject:

Howdy folks, Tom here. Not that I dont believe the manual but I'm the curious type. Some youtubers say to charge your batteries at 0.3 amp if it's a 200 mah battery. The manual for the MCPX says to set it at 0.7 for the 200 mah. I understand "normal" batteries but lipo batteries are different. What a good setting to use so as not to hurt the battery. Thanks.

Tom
_________________
Esky Big Lama
Blade-MSR-X, Blade-MCX, Blade MCPX,
Xieda-9958, E sky-Nano
DH 9100, Alot of Syma's
Novus 125 FP

pjdog · Posted: Mon Jan 23, 2012 12:21 am Post subject:

a 200 mha charge @ .2. A 1800 mha charge @ 1.8.

Jack