Round 2 of Icecube57 HK Lipo Battery Testing (Please Donate)

icecube57 · Post by **icecube57** » May 29 2016 7:38am

This is Icecube57 AKA Christofer Parham at Lipo Connection Solutions. Im doing another round of battery testing of some of the HK lipo again. I need help from the community to bankroll this effort.
I currently have packs on order. I understand peoples reservation about donating money and such. (2) people donates $70 Bucks total. I waited and no one else came forward. So I decided to go out on faith and pull the trigger and hope you guys come through once I show I was serious about this testing I bought the following packs to get us started.

Turnigy Graphene Professional 3000mAh 3S 15C LiPo Pack w/XT60
Turnigy Graphene 3000mAh 3S 65C Lipo Pack w/XT90 (AR
Turnigy Bolt 2200mAh 3S 11.4V 65~130C High Voltage Lipoly Pack
B-Grade 3000mAh 2S 40C Lipoly Battery (AR Warehouse) 1
Multistar LiHV High Capacity 3000mAh 3S Multi-Rotor Lipo Pack
Turnigy nano-tech 3000mah 3S 25~50C Lipo Pack (AR Warehouse)
Turnigy 3000mAh 3S 20C Lipo Pack (AR Warehouse) 1

Shipment SmartAR Fedex (Zone 4) US$10.98
Total US$174.89
Bonus points used: $9.94
Total After Bonus Points $164.95

My Paypal is lipoconnectionsolutions@gmail.com

If you could donate some funds to help bridge the gap and possibly foot the bill to purchase some more packs that you might want to see tested.

If you like to send me some cells for testing. That would be great also. I know 18650 is all the rage now. I would love to get some small 5P spot welded groups of the latest and greatest 18650 for testing.

My test bench can test up to 70A and plot the cell voltage so we can hopefully do an overlay of the different pack types to see how they perform. I bought smaller capacity sized cells so this will artificially increase the C rate in which they are discharged. This should scale up.

What I want to see is does the 1/4 C rule still apply with these new pack chemistries. Meaning if its a 10C pack is it really a 2.5C continuous discharge. And also how well does the cell hold its load and does it stay above 3.5v a cell for the entire discharge and at what C rating is cell being stress too much and is losing capacity or hitting the controllers LVC due to the voltage sag being too great under said load.Example the cell maybe able to deliver for the first 60% of the cells capacity but its unable to hold a high enough voltage under load to allow you to discharge further.

I also bought a nanotech to see how well the Multistar pack would perform being paralleled with a nanotech. Can you have a Low C discharge pack be augmented by a High Discharge Pack to get better overall performance. You get more Watthours for the price with the Multistar but not performance but If a nanotech could pad the numbers a bit this would be an awesome compromise.

teslanv · Post by **teslanv** » May 29 2016 8:02am

As the first donor to this effort, I would encourage the rest of you to pony up.
We have been well advised by icecube over the years.
Even if you can only afford $5, send it.
~Teslanv

Post by **liveforphysics** » May 29 2016 10:10am

Sent.

Thanks for testing!

electricbike · Post by **electricbike** » May 29 2016 1:25pm

Some money sent.
/Lasse

icecube57 · Post by **icecube57** » May 29 2016 2:05pm

Thanks kindly. Looking forward to puffing some cells this week

Samd · Post by **Samd** » May 29 2016 6:53pm

Yep - donated via facebook ES> love your work man.

nutnspecial · Post by **nutnspecial** » May 29 2016 8:39pm

Thanks for doing the testing icecube, I like your vids and contributions to the community bro.
Very curious of the C ratings on newer packs also. Peace!

icecube57 · Post by **icecube57** » Jun 03 2016 2:33pm

icecube57 · Post by **icecube57** » Jun 05 2016 1:06am

Current charts for the B Grade 3000Mah 40C Lipo

icecube57 · Post by **icecube57** » Jun 06 2016 10:32am

This is just a teaser. Posting the 70A 23C Discharge of the 65C Graphene

Post by **liveforphysics** » Jun 14 2016 12:59am

I'm excited to see some data. You're potentially saving me test labor/money for my next acrobatic-performance focused FPV quad build. Thank you for your work!

icecube57 · Post by **icecube57** » Jun 15 2016 6:43am

This is the discharge graphs for the 65C Graphene. I will be doing the 15C Graphene next.

icecube57 · Post by **icecube57** » Jun 15 2016 5:49pm

I do not recommend Graphene 15C. I got a bad pack but the IR HEAT Generation and cheap construction.. they didnt waste to much money on this cause I have a feeling they probably knew it was up to no good.