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  (#16)
snellemin
2 KiloWatt RACER
 
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Location: Houston
02.22.2011, 04:04 PM

Time for an update on the battery pack.

The original pack is still kicking butt after abuse. One cell reads a bit lower then the rest, but that was to be expected with the 3.0V cutoff. The pack would of lasted longer with a 3.2v cutoff. I still charge the pack at 30A.

Now to the skinny with ACEpow. Build quality has gone down ever since they started to sell to hobbypartz. Cut throat pricing has lead to laying off half or more of the employees. The new packs don't have matched cells anymore. I even have one brandnew pack with a death balancing lead.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW

Last edited by snellemin; 02.22.2011 at 06:40 PM.
   
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asheck
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02.22.2011, 05:05 PM

HMMM, always the day after you receive something. I just received 3 packs, a 5000mah 40c 3s hardcase, and 2 5300mah 30c 2s. All the cells were balanced out of the box. I've only ran the 3s once in a vehicle that I haven't run any other 3s's in, so have no opinion on comparable performance, but it seems strong. Getting ready to go for run #2
   
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georgec
RC-Monster Carbon Fiber
 
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02.22.2011, 05:14 PM

Shame the quality has gone down, price is rite and ROAR approved! The only thing I like about ROAR approval is standardized sizing.
   
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  (#19)
snellemin
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02.23.2011, 01:05 PM

I cracked open my third Acepow 4s pack to check the balancing wiring. Turned out that the ground was misplaced. 3 cells read 1.1 and the last one 1.7.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
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  (#20)
scarletboa
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02.23.2011, 01:17 PM

Well, i was considering getting a few acegen packs, but after seeing the recent feedback, i think i will stick to my cheap turnigy packs. I have had pretty good luck with turnigy and flightmax packs.


They say a good mechanic only needs 2 tools - WD40 & Duct tape. If it moves, and its not supposed to, duct tape. If it doesn't move, and its supposed to, WD40.
   
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  (#21)
snellemin
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04.21.2011, 07:41 PM

I ordered me another 4s pack a few days ago for my Ebike. I'll see how the cells are matched. I've been using my other three 4s packs and one 2s in my Ebike. Two cycles a day for the past 3 weeks. I'm charging them to 4.1V per cell this time around to gain some life cycles. Time will tell how long they will last.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
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J57ltr
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Location: Tomball/ Houston Tx.
04.23.2011, 12:15 AM

That thing has the guts that's for sure being able to push my fat ass around!

Jeff


The Warnings & Cautions discussed in this manual cant cover all possible conditions/situations. It must be understood that common sense and caution are factors which cant be built into this product.
   
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  (#23)
snellemin
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02.12.2012, 01:59 AM

Was testing my 1/8 speed runner with some new ESC tweaks. During acceleration pulled ~174A@3.4V per cell, which is around 35C. This was my oldest 40C 4s1p 5000mah hardcase pack. Pack warmed up quick after that stunt. Car had a blow over around 70mph after hitting something and I called it quits for the nite. Side note, Tekin 222 firmware didn't work for me.



6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
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  (#24)
snellemin
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08.05.2013, 12:36 PM

Final update on my oldest 4s1p Acepow and 2s1p packs.

Last time I used the 2s packs was a month ago. The 4s packs around two months ago.
They have been used in my Ebikes after I kinda slowed down with my RC toys. I have been storing them in a metal desk in the garage during the summer and always use the FMA charger to put my packs in "storage" mode.
Both the pair of 2s and 4p packs have finally swollen up and I had to get rid of them.

All my A123's are still good. Those things are hard to kill.


6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
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