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LiIon, LiPo, NiCd & NiMh General General Battery Support |
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03-07-2012, 10:05 PM | #41 (permalink) |
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You CAN charge different cell count packs in SERIES but not in parallel.
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03-07-2012, 11:05 PM | #42 (permalink) |
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What about discharging to a storage charge? Can you do all at once or will that over heat the charger? I have a iCharger 3010B.
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03-07-2012, 11:37 PM | #44 (permalink) |
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I currently only have three batts. Two 3300 6S and one 2600 6S. Can I hook all of them up to my paraboard and discharge them all, at once, to a storage charge?
I'm doing it as I type this...so I hope its ok. lmao |
03-07-2012, 11:49 PM | #46 (permalink) |
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Awesome, glad to hear I'm not going to burst into flames over here. As usual, I can always count on this forum to help out the new guys. Thanks again.
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03-13-2012, 07:35 PM | #47 (permalink) |
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Join Date: Apr 2011
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It will work, but it will take a LONG time, AFAIK that charger can do 50W discharge which is about 2A which will take over 2hrs to pull 50% out of those packs.
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-DX8 -MSH MiniProtos Stretched, SK720, DS95/DS95i, Hyp 4S 25C 2500mAh -MSH Protos Stretched, Brain, Hyp DS16/BLS251, 6S 3000mAh -Goblin 500, HC3SX, Hyp DH16/MKS980BL, Scorp 4015-1100 |
04-21-2012, 04:04 PM | #48 (permalink) |
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thanks for the info, i sure wish they gave you this info in the lipo instructions instead of the cryptic verbiage they supply (which im sure is just wrapped around legal reasons).
I had ALWAYS charged my batteries after every flight and they would stay charged for 1-2 weeks, some for months. Didnt know i was killing them doing this, good to know and will save me time :0) Finally, i just want to confirm, i am setting up a new 450 the voltages are 3.99, 4.01, 4.02 - so that means i can fly until the lowest one is ... 2.96V (3.7 * 20%) ? I have been assuming the voltages were diff cause its a cheap tester, but i never once cycled a new lipo 5 times like you say and the LHS's never tell you to do that when you buy one (i guess they dont know or assume you do) this is a REALLY NOOB question, but ideally if the battery voltage specifies its 11.1 shouldnt each cell at full charge be 3.7? Or is that just a ... approx since the battery voltage is usually well over 11.1 on a full charge? 'Generally a lipo flown down to 20% will end up between 3.6-3.8 v/cell. Never discharge for any reason below 3.0V/cell resting voltage. They then die forever.' sorry for the long reply... |
04-21-2012, 08:59 PM | #49 (permalink) | |
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Quote:
No, 11.1 is not the voltage of the pack at a full charge. A fully charge Li-Po will be 12.6, so each cell would be at 4.2v. Never discharge a Li-Po below 3.6-3.7v... doing so will most likely damage the battery and it will never perform the same or could possibly need to be taken out of service.
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- 6S TREX 450 Pro FBL - µBeast, MKS, Castle Creations - Goblin 500 - Kontronik Pyro 600-12, Jive 100lv, iKon, BK servos - TBS Discovery - Pixhawk - Spektrum DX7 |
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04-24-2012, 11:44 PM | #50 (permalink) | |
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Quote:
Excellent write up and its helped me big time, thank you very much. I have a question about Tx LiPo batteries. I assume all these rules still apply? How ever, my DX8 does not have a storage charge setting. The battery lasts a long time (weeks) so I cant discharge through normal use. What does one do about the battery being fully charged (or near full charge) for long periods of time? |
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05-03-2012, 02:48 PM | #51 (permalink) | |
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Join Date: Apr 2012
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Quote:
They are different than the old Lithium Ion batteries, but all the new devices out (like laptop batteries, phones, etc) all use Lithium Ion Polymer batteries, not Lithium Ion batteries. Yes, your phone and laptop has the same type battery as your rc plane does, it is in a hard case though. |
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05-03-2012, 07:51 PM | #52 (permalink) | |
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Join Date: Apr 2011
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Quote:
The composition of the cells is slightly different, especially the membrane, to allow faster Ion transfer.
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-DX8 -MSH MiniProtos Stretched, SK720, DS95/DS95i, Hyp 4S 25C 2500mAh -MSH Protos Stretched, Brain, Hyp DS16/BLS251, 6S 3000mAh -Goblin 500, HC3SX, Hyp DH16/MKS980BL, Scorp 4015-1100 |
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05-04-2012, 05:35 PM | #53 (permalink) | |
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Quote:
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05-14-2012, 07:54 PM | #54 (permalink) |
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I have a couple questions.
Do you always refrigerate your packs between uses or just for long term? Is there an ideal storage temp? Is there an ideal usage temp?
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Draganflyer IV - mCX - mSR X - mCPX v2 - DX8 - iCharger 206B |
05-14-2012, 08:24 PM | #55 (permalink) |
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I never refrigerate my packs.. most don't. I just store in the garage in cement block bunkers. Doesn't get over 80F even in the summer.
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"It's not just a hobby... it's a lifestyle" - Pete ϟ MINNESOTA! Goblin 500 + 700 / SK540 / Jives / DX8 / Quantum / RJX servos / 306b / Deep cycles |
06-10-2012, 06:25 AM | #56 (permalink) | |
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Quote:
Refer Hyperion website "Storage - Lipo should never be stored fully charged, or with less than 50% of capacity remaining.* We strongly recommend Hyperion EOS chargers, as they have automatic STORE functions to insure that the packs are in the range of about 60%~70% capacity (3.78V~3.92V resting voltage per cell).* After returning home for the day, simply use STORE MODE to achieve this automatically. Batteries are best stored in a cool, dry environment (2~20 °C or 37~68 °F)." http://media.hyperion.hk/dn/g3lipo/
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TREX 450 PRO DFC - 2221-8 V2 (3S), ICE50, AR7200BX, HS65MG, DS3500G, KBDD Tail Blades RAVE 450 - 2221-10 (4S), ICE50 Lite, Quark, DS285, DS3500G, 6100E, KBDD Last edited by brentonasmith; 06-10-2012 at 08:03 AM.. |
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06-30-2012, 01:15 PM | #57 (permalink) |
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pack voltage differences
Hi I've just got my eighth turnigy 6 cell 5000mah pack. When charging, cell 6 gets up to 4.15 volts then thats it. the other 5 all ballance out around 4.2. None of my other 7 packs are like this, some of them are in to 50-60 cycles. I do parallel charge my packs with an icharger 306b but when new a usually charge them on there own for 5 cycles or so. is there a problem with this pack? shall i put a few more cycles in to it or do I need to send it back? the IR is 1 on all cells
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07-02-2012, 12:28 AM | #58 (permalink) | |
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Quote:
__________________
-DX8 -MSH MiniProtos Stretched, SK720, DS95/DS95i, Hyp 4S 25C 2500mAh -MSH Protos Stretched, Brain, Hyp DS16/BLS251, 6S 3000mAh -Goblin 500, HC3SX, Hyp DH16/MKS980BL, Scorp 4015-1100 |
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07-25-2012, 12:47 AM | #59 (permalink) |
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Join Date: May 2011
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I just built a 4 port parallel charger lead for my 4 800mah Gens ace batteries for my Trex 250. Just wondering at what rate I should be charging all 4 at together? I have been charging them at 0.4A on their own. I feel like I could be higher then that. But now that I am doing 4 together can I up my rate 4x to 0.16A? LHS guy won't help me on this. He is dead against parallel charging.
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07-25-2012, 01:10 AM | #60 (permalink) |
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What charger do you have?
For your packs a 1C charge would be .8A per lipo... so four packs in parallel you would set it to 3.2A. But with Gens Ace you can certainly charge at 3C to save time... so set it at 10A. All four packs will finish in around 20 minutes or so. Parallel charging is the way to go these days. Don't worry about it.. just make sure your packs are all healthy and have roughly the same number of cycles... and if one won't balance well or if puffing.. pull it out of the loop and charge it by itself.
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"It's not just a hobby... it's a lifestyle" - Pete ϟ MINNESOTA! Goblin 500 + 700 / SK540 / Jives / DX8 / Quantum / RJX servos / 306b / Deep cycles |
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