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02-12-2006 01:47 AM  12 years agoPost 1
noitall

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Tampa Fl

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I'm thinking of getting 2 new batteries. Should I get the EVO 20 1800 or 2100? (3s1p)

Jeff

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02-12-2006 02:25 AM  12 years agoPost 2
GM1

rrElite Veteran

Tallahassee, Florida US

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Evo 20s
The Evo 1800s weigh 147gr and will put out 36 amps continuous and burst to 54 amps. The 2100s weigh 177 grams and will run 42 amps continuous and burst to 63 amps. The 1800s are a much shorter more compact package and will fit nearly any model. The 2100s are pretty long and will fit the SE only on the top tray slanting down into the canopy. They will also fit in the back but the model becomes amazingly tail heavy so that really isn't a choice.
I am running 2100s in my SE and am VERY impressed with them and the Jazz 40-6-18 ESC. Wide open serious 3D and the motor ESC and batteries are barely warm. Now if they could just figure a way to fast charge these.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.

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02-12-2006 03:10 AM  12 years agoPost 3
lakespinner2

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north carolina

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noitall, I just received the evo20 1800 a week or so ago and I've been playing around with it to see how it holds up to hard current draws. It seems to do very well. I switched a 4 cell t-rex to a 3 cell Neu 1107/2Y setup to see how it would fly. I put some very heavy mavrikk CF blades on it and some lighter hyperion blades as well without changing anything else and plotted the results. The graph shows the batteries are cruising along without being stressed at all. Even the hardest collective maneuvers dont' get the current up to the 'continuous' rating of the battery. I think I'm going to like it.

Evo20 1800 power graph

The headspeed was around 3000 more or less. I haven't really timed it to see how long they fly but I tend to want pretty short flights. I quit when the fingers start shaking or they become numb from the cold. I mainly wanted it frisky so I opted for a little less weight. The 2100's would be great too I'm sure.

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02-12-2006 04:16 AM  12 years agoPost 4
ShellDude

rrElite Veteran

East Coventry, PA

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Two 1800s here and loving them to death on my 450x V2.

Lakespinner, would you also happen to have a discharge chart for a ThunderPower Prolite 2000 3S? I'd love to have something for side by side comparison next time someone tries to bash FP.

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02-12-2006 01:34 PM  12 years agoPost 5
lakespinner2

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north carolina

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SD, I dont have any 3 cell TP 2100's. I do have 2,3,4 and 5 cell TP PL batts but my 3 cell PL's are all the 2000 PL version. The one Evo20 1800 is the only battery I have that's not a TP, but I wouldn't hesitate to buy antoher one. I like it. I had to make an electrical adapter to make it fit my little TP balancer but it all works together very well.

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02-12-2006 02:46 PM  12 years agoPost 6
I3DM

rrProfessor

Israel

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Im also completely in love with my 1800Mah Evo20 packs !! i chose the 1800 over the 2100 to gain some extra power due to lower weight, and the results are amazing !!

Gordie,
Now if they could just figure a way to fast charge these.
Gordie
They do have a way already. all Evo20 packs can be safely charged at 2C with a good charger and a cell balancer. 30 mins charge isnt bad considering they fly for more then 10 minutes (the 2100's) on a charge.

www.liorzahavi.com

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02-12-2006 02:55 PM  12 years agoPost 7
Dorset Boy

rrApprentice

Dorset England

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I agree with I3DM the EVO20 1800 packs are the way to go
The power they give are better than anything I have used before!
I am using EVO20 3s 1800 with a df400 motor in one and
EVO20 4s 1500 with a NEU 1105/3Y in the other and am very happy with both setups
Both setups give about seven and a half mins of hard 3d without pushing the batterys

Century Helicopters, Coolpower Fuel, Flight Power Batteries, CSM Gyros, Futaba from Hobby Hangar

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02-12-2006 03:23 PM  12 years agoPost 8
clearsky

rrApprentice

connecticut

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any one use 4S 1800, EVO

Keep'um in sight

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02-12-2006 03:25 PM  12 years agoPost 9
I3DM

rrProfessor

Israel

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I do, with my Medusa 2800 motor.

awesome batteries, im getting 7:30 mins of hard powerful 3D with 15-20% left in the battery. they also fit easily in the canopy.

www.liorzahavi.com

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02-13-2006 08:50 AM  12 years agoPost 10
keyz

rrVeteran

, UK

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as for fast charging these little power plants
ive got 5 of the 3s1p 1800's and this is enough to rotate them when im at the field to charge them , can virtually keep my heli in the air all day this way charging them at 1C
i thought it better to use my money buying extra cells than spending more money on a fast charger . after all if youve got a charger why would i want another one!!
i love these batteries

If you need to get high , go and fly !

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02-13-2006 12:31 PM  12 years agoPost 11
Jay Mowl

rrApprentice

Owosso Mi. USA

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Can't wait to try some! I'll probly go with the 1800's cuz of the weight, I run TP's right now which I believe weigh around 160 something. Thanks for the info guys!

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02-15-2006 12:29 AM  12 years agoPost 12
noitall

rrNovice

Tampa Fl

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Called Duralite today. Ordered 2 EVO 20,s 2100. They did not have any in stock . But will have them in stock in about 9 days and will ship them then. Hopefully they will be worth the wait.
2 Duralisky 2250
2 Duralisky 1700
looking forward to some good quality batteries.

Jeff

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03-06-2006 02:36 AM  12 years agoPost 13
noitall

rrNovice

Tampa Fl

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The EVO 20c came in on friday. 2100.. Flew them saturday and sunday. can't till much differance in them and the cheep 12c 2250 that I have been flying. i have a watts up meter and will do some test and post the results. The weight of the 2100 help the cg. They fit nicely under the canopy. After my first flight i was very disapointed.

Jeff

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03-06-2006 03:05 AM  12 years agoPost 14
Helifool

rrVeteran

Rochester New York

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Its a good idea to break in your pack before you use it. After a few cycles you should actually gain a litte capacity. This is the case atleast with the tp batteries.

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