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Other › Apex Battery Short Life
11-26-2006 11:45 PM  11 years agoPost 1
Willie 300S

rrApprentice

Birmingham, Al, USA

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I purchased 3 Apex 2100 mah 15C batteries about 7 or 8 months ago. They have not been abused, flying about 7 or 8 minutes, simple stuff and kept careful watch of the balance. They have always been within .01 volts. The problem is, all 3 packs are now swelling up. Not to a large degree, just puffy on the flat sides. They seem to charge and fly ok but at the field today, I was cautioned by more than one experienced battery pilot that the cells were bad and should not be used, risking fire or catastrophic failure.
My questions from the experts on this site:
1. Are the pack really bad and dangerous to continue using?
2. Is 7 month considered normal? They probably only have about 50 cycles on each pack.
3. Will the manufacture or dealer warranty the packs or stand by them in any way. I don't remember who I purchased them from but it was one of the advertisers on this site that was selling them 3 for about $150 or so.
Thanks for any help.

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11-27-2006 12:41 AM  11 years agoPost 2
Jason Bell

rrElite Veteran

California

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give or take a couple months id say thats the norm.

AMain.com
Mikado "V Team"
Xnova Motors
Optipower USA
RCProPlus

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11-27-2006 01:04 AM  11 years agoPost 3
slider46

rrProfessor

Ocala Florida

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Willie I'm in the same situation. I bought 2 Apex packs and they are about almost 8 months old and just started puffing. The one pack is flown more than the other so I was suprised they both started puffing... I always rcharge my packs with a balancer and they are in top condition. I hate to buy new packs now as they will sit most of the winter but I am wondering if this is normal battery life for a lipo. My 1320 TP packs are the same age and show no signs of puffing at all...

Tom..... No "D" flying....

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11-27-2006 01:32 AM  11 years agoPost 4
Gary Hoorn

rrKey Veteran

Annapolis Maryland USA

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Tom,
I have tried a bunch of different Lipos with so-so results. I went back to Thunder Power even though they are more expensive. Other brands have not stood the test of time.
Gary

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11-27-2006 01:41 AM  11 years agoPost 5
slider46

rrProfessor

Ocala Florida

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Hi Gary, haven't chatted with you in a while.... That is kind of what I figured you get what you pay for. I can get 2 Apex packs for the price on 1 TPX 2200. If the Thunder power lipos will hold up longer I will probably go to those in the spring when I get the trex's out again.. I will use the Apex thru the winter catching a flite every now and then outside on a nice day .....

Tom..... No "D" flying....

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11-27-2006 01:44 AM  11 years agoPost 6
Gary Jenkins

rrElite Veteran

Nowhere, US

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Gary
Have you had so-so results with the 20C packs or have you just compared 15C packs?

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11-27-2006 01:52 AM  11 years agoPost 7
Jason Bell

rrElite Veteran

California

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So far I LOVE MY 2070 extreme, it was cold this morning and i was dissapointed because the pack wasnt even warm enought to warm up my hands.

ITS A GOOD BATTERY GET ONE!

AMain.com
Mikado "V Team"
Xnova Motors
Optipower USA
RCProPlus

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11-27-2006 02:29 AM  11 years agoPost 8
Willie 300S

rrApprentice

Birmingham, Al, USA

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When they start getting puffy does that mean they are dangerous to fly or recharge?
BTW I have a Kokam pack that is much older, probably 18 months or more, and is just fine, showing no signs of puffing up.

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11-27-2006 02:30 AM  11 years agoPost 9
Jason Bell

rrElite Veteran

California

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Maybe so maybe not, we have a guy at te field with the align 220omah packs and they are all puffed! even aftercooling down they puff! Crap betteries! not sure how long they lasted though

AMain.com
Mikado "V Team"
Xnova Motors
Optipower USA
RCProPlus

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11-27-2006 02:38 AM  11 years agoPost 10
slider46

rrProfessor

Ocala Florida

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Willy what I do is watch and check, the temp, by hand while charging the packs... I Don't let them out of my site while charging...

Tom..... No "D" flying....

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11-27-2006 03:30 AM  11 years agoPost 11
rky5

rrVeteran

Oak Hills california

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I Only have about 150 flights on the APEX 2100 Lipo and so far so good .
But I like the TP 2100 better and I have almost 500 flights on one of the TP2100.
The APEX weighs in at a little more and It messes up my trim when I swith it out From the TPs
But to answer the question...if it is swelling I would toss it out.

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11-27-2006 04:15 AM  11 years agoPost 12
ShellDude

rrElite Veteran

East Coventry, PA

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My apex packs are getting a smidge puffy after a serious session but they tend settle back down once they reach ambient temperature... hard to complain considering that bulldogs da man hooked me up with a pair for a scratch on the back and toe rub

~~OCHC~~
http://www.glumbert.com/media/spiders

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11-27-2006 05:20 AM  11 years agoPost 13
bulldogs

rrElite Veteran

~OC~ ,CA USA

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Shell your killing me!!!!!!!!!!!

Apex = 5 min flights thats all ....

~TEAM OCHC~
A strong man stands up for himself a STRONGER man will stand up for others.

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11-27-2006 05:42 AM  11 years agoPost 14
ShellDude

rrElite Veteran

East Coventry, PA

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~~OCHC~~
http://www.glumbert.com/media/spiders

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11-27-2006 06:03 AM  11 years agoPost 15
BikeNBoatN

rrVeteran

Santa Ana, CA USA

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I've got several yellow 2100mah 15C Apex packs, the oldest about 8 months old. They were originally run about 7-8 minutes/flight, then about 5-6 mins/flight, always balanced, charged at 1C or less. They puffed almost immediately, but seemed to work adequately till just recently. After about 55-60 flights, they only last about 2 minutes before sagging so much the heli self-lands.

Brent
Slow and Smooth 2-D Scale Flyer
AMA #35431

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11-27-2006 08:11 AM  11 years agoPost 16
TRex888

rrVeteran

Monmouth, UK

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Just a FYI. The current two packs I'm running

- FP 3S 1800mAh started to loose power after 50 cycles now on 90 cycles and only get 5.5 mins

- Align 3S 2100 mAh started to loose power after 120 cycles now on 290 cyces and still get 7 mins

Both packs always balanced charged at < 1C. I though that the FP were great if you expect only 50 cycles from them. Can't fault the Aligns yet. I've also tried someone else's TP extreme. They did have more power than my aging Align but were about the same as when my aging Align was new.

Just got myself 2 more Aligns at GrandRC for US$110

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11-27-2006 11:11 AM  11 years agoPost 17
electricdurango

rrVeteran

Sterling, VA

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I have 2 of the APEX 15c yellow 2100's as well. They are well taken care of and are puffy. Many people have told me with the 15c yellow packs a slight puff is ok. They just scare me because my TP 2100's are flat as the day i got them.

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11-29-2006 03:46 PM  11 years agoPost 18
JoeR

rrApprentice

western NY

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I too have 2 of the APEX 15c yellow 2100's with maybe 40 cycles on each. They puffed this summer and have been slowly degrading in performance. I have a WestMountain CBA and ran a 10 amp discharge on them to test the other night. They only gave out 1200mah and with quite a voltage sag. I would say they are shot. They only fly my heli for about 6 minutes and have very little power. The last APEX packs I will buy.

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11-29-2006 04:57 PM  11 years agoPost 19
Willie 300S

rrApprentice

Birmingham, Al, USA

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My LHS says that no one has reported problems with the Apex yellow 15C 2100 mah units except me. So I bought 1 more pack hoping that mine were from an earlier batch (purchased on line when they first came out)and that the newer ones will hold up. The new one is very hard and flat. I don't believe the earlier ones were ever this flat. Time will tell if they hold up.
I'm moving up to a Raptor (nitro) anyway (keeping the SE of course) so maybe I won't need so many packs when I go fly. Buying $150-$200 worth of batteries every 6 or 7 months is not cheap. That's why I'm going nitro this time rather than considering a 600.

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