1 kWh LiPo club, who's in?

[fizzit]

Your overweight packs can kiss my 144wh pack's shrink wrap

 

[John in CR]

I thought if the nominal voltage is 3.7, then it's lipo. It's definitely not limited only to prismatics, since they can be formed into whatever shape desired.

 

[voicecoils]

I thought if the nominal voltage is 3.7, then it's lipo. It's definitely not limited only to prismatics, since they can be formed into whatever shape desired.

You've got it backwards. If it's lipo, the nominal voltage is 3.7v.

That's simply a reflection of the cell's electrochemistry.

There are other lithium ion batteries, other then lithium polymer which also have a 3.7v nominal voltage.

Then there are lithium ion variants that have other nominal voltages from around 3.2-4.2v.

 

[JRitt]

I am waiting for my 5305 motor but I have the 72v 65a controller and the 72v 20ah Lipo (1.440whr) battery charged and ready. Photos will be posted after the first check ride.

 

[Kingfish]

Yesterday I rode with 10S10P LiPo; each battery being at 5000mAh -> 37V nominal @ 50Ah = 1.85kW. Though I also have another 16 batts ready to load, therefore I have the potential for 90Ah -> 3.33kW.

 

[voicecoils]

Yesterday I rode with 10S10P LiPo; each battery being at 5000mAh -> 37V nominal @ 50Ah = 1.85kW. Though I also have another 16 batts ready to load, therefore I have the potential for 90Ah -> 3.33kW.

That's a nice big pack. You're mixing up power and energy though.

It's 1.85 kWh (kilowatt-hours). So with your present pack, you can ride the bike using 1,850 watts for 1 hour, 18,500 watts for 6 minutes or at 500 watts for 3.7 hours.

 

[Kingfish]

... It's 1.85 kWh (kilowatt-hours).

Yes you are correct; forgive me for the typo :wink:

 

[Hyena]

Yeah I've got a bit of lipo laying around

A bit over 2kwh but my favourite pack is my 18S2P, 666kwh

 

[grindz145]

Not in LiPo, but I'm rocking 5.0KwH of LiCo

 

[Kingfish]

... It's 1.85 kWh (kilowatt-hours).

Yes you are correct; forgive me for the typo :wink:

Thought I’d update this figure:
Last summer I ran 15S12P LiPo; 63V hot with 12 x 5000 mAh = 3.780 kWh
Presently I am configured for commuting: 15S6P -> 1.890 kWh

Quite fun at WOT, KF

 

[hydro-one]

Check: 2p of 15s2p so thats 12 turnigy 5s 25c. in the backpack wrapped in ducktape right now!!!!!

I added a friends lipo, he broke his axle. I told him i would "tune up" his pack. by running it in parrelel with mine

mike

 

[rebelpilot]

.

 

[wineboyrider]

12s lipo 20.8 ah pack = 915.2 wh
Add a 5s 13.2 ah booster back= 264 wh


In!

 

[Doctorbass]

So if i use the code suggested at teh begining of this thread it look like this:

Giant Dh comp: 1.3 kWh, 10kg, QTY 12 Zippy FlightMax (4s3p of 6S1P 5Ah 20C)

Mongoose:2.3 kWh, 30kg, QTY 432 Konion(makita) 18650 cells 24s 18p 23Ah 10C

4x of the pack shown in this picture:

Doc

 

[dogman dan]

I wasn't paying much attention to this thread. But I guess I'm in too.

Commuter bike, when configured for distance carries two pings. So about 1600 watthours there. Normally it packs only 800 with just one of the pings.

The Death Race bike carried 24s 10ah lipo last fall, so just about 1000 watthours on that too.

 

[Farfle]

Just barely there! 24s 2p 5.8 ahr packs. 3.7x24sx11.6ah=1030 W/Hr .

 

[JoeFR]

One more over 1kWh

16 x Turnigy 6S1P 5Ah 20C

Configured: 24S4P 3.7V x 24 = 88.8V.. 88.8V x 20Ah = 1.776kWh

Thanks Doc to clarify real wh capacity

http://i920.photobucket.com/albums/ad43/JoeFR/E-Bike_ES/991_Alu_BatteryBox_BatteryInstalled.jpg

 

[Doctorbass]

One more over 1kWh

16 x Turnigy 6S1P 5Ah 20C

Configured: 24S4P 24 x 4.15V x 20Ah = 1.99kWh

http://i920.photobucket.com/albums/ad43/JoeFR/E-Bike_ES/991_Alu_BatteryBox_BatteryInstalled.jpg

Hey.. Just to help you understanding the real Wh... A lipo cell is not calculated at 4.15V but at his nominal voltage of 3.7V :wink:

3.7V x 24 = 88.8V.. 88.8V x 20Ah = 1.776kWh

Doc

 

[icecube57]

I see your point and its kinda misleading. You can actually drain a little bit more than the calculated wh using the nominal voltage. Not alot but its enough to matter.

EX. I did a full discharge on a 12s 10AH pack. So thats 44v.4v x 10AH = 444wh but I actually discharged 456wh. Results with a SA CA with precalibrated shunt.

So in theory our 24s 3p Turnigy pack we have still deliver 1.3kwh or 1.332kwh but they deliver 1.368kwh to be exact.

 

[dogman dan]

That reasoning would knock out my death race bike. Oh well. I guess it's 112 wh short.

 

[nicobie]

I'm running 18s3p 5ah which is 999wh, but when you add in my 148wh, 4s2p 5ah boost pack, it seems I've got a total of 1147wh.

 

[Sacman]

I guess I'm in too...

16 x Turnigy 6S 5Ah 20C

Configured: 12S8P 3.7V x 12 = 44.4V
Capacity: 44.4V x 40Ah = 1.776kWh

Woohoo!!!

 

[Ykick]

My usual capacity = 15S4P. I guess that's about 1.1kwhr on the bike? Discharge voltage between 57-60V, 12qty 5AH bricks.

I also use 12S3P setup for extended range and/or reserve = additional 0.7kwhr.

Oh, least forget 3S1P 5ah lighting pack - 60whr? (salvaged from a 5S brick that suffered dead cell.)

btw - these are all HobbyKing RC (Turnigy, Zippy) Lipo. NOT counting any LifePo4 stuff...

Nominal total = 1.860kwhr

 

[neptronix]

Just joined the club after plunking down $622 on hobbyking

Turnigy 30AH 10s = 1140
Zippy 30AH 12s = 1368
Total: 2.508kWh

That sure as hell better get me up pike's peak.

 

[c_a]

pocket: 12s4p of 3.7V/4.9Ah = 870.24Wh
enduro: 24s9p of 3.7V/5.35Ah = 4.27kWh (not mine)
epo-bike 2012: 24s11p of 3.7/5.35Ah = 5.225kWh

total: 10.365kWh