|Nov 01, 2002, 11:39 AM|
Tell me how you like MAXX 1000mAh NiMH cells
I've searched but found little hard data..
I don't need opinions (I've read a few of those), but experience using these cells - particularly max current draw.
I'll be using mine in my Slow Stick (at first)
|Nov 03, 2002, 09:07 AM|
Thanks for all the feedback!
Well, they charge on auto mode in my I2 at 3.5A (max) - that pretty much speaks for itself. Using a 6-cell pack, my Slow stick (300 setup) flies 30 minutes on a charge. Power was more than adequate - almost vertical when needed, but running at 1/3-1/2 throttle in real slow flight. Boring as heck, of course, doing 100+ laps of an indoor soccer arena, but I wanted to see what duration I'd get. Voltage drop is minimal, power is lost suddenly with little indication that it's dropping. Good and bad, I guess.
|Nov 04, 2002, 02:24 PM|
I started a thread a few days ago asking about comparisons between the Maxx 1000 and HeCell 1100, but I didn't get any replies (either)!
I'd like to get some more facts/specs on the Maxx cell if you run across any.
FYI I got some HeCells the other day and made up an 8-cell pack, the pack weighs exactly the same (6 oz even) as the 8-cell Maxx 1000 pack. Running the two packs hard in my slowstick (well, as hard as you can in a Slowstick) I can tell absolutely no difference in the performance. To me the Maxx cells seem at least as good.
|Nov 08, 2002, 04:01 PM|
Joined May 2002
Well I don't know if this info is any help, but I did some static testing of the HE cell and Maxx 1000 cell.
10X4.7 APC SF prop, Hacker B20-15L + 4:1, room temp was 70 degrees.
9 cell HE 1000/1100
Charged at 1C took 1070mah. (has about 12 cycles on it)
12.51 volts before
12.09 volts 5 minutes after
Peak: 14.4 amps
After 5 seconds: 14.0 amps
9 cell Maxx 1000
Charged at 1C took 1081mah. (has 4 or 5 cycles on it)
12.12 volts 5 minutes after
Peak: 14.9 amps
After 5 seconds: 14.5
Both packs were ~60 degrees before and slightly warm (~70) after the test.
In flight I haven't been able to tell any differences either, but it was only my first day of actual flights on the Maxx 1000. I had a 15 minute flight (BEC never cut me off, i perceived a slight power sag and landed) with the Maxx 1000 9 cell pack on a 4:1 geared sp400 (8X6SF) Wingo on floats, just loafing around for splash and goes.
One thing that didn't work -- I had 6 leftover HE cells and wanted a 9 cell pack so I tried combining 3 Maxx 1000's and the 6 HE's (all cells were discharged and had the same voltage). The pack would never take more than an 800mah charge and wouldn't discharge more than ~700. Oh well.
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