BurnItAllDown

Ive seen a lot of articles about these when they first came out but really no new information since. Any one have any experience with these batteries and what has it been like?

0verkill

iTrader: (8)

They are excellent! Most powerful 4.2v battery on the market. I don't think you'll find much feedback in this section, most racers use stuff like SMC hard cases. If you want to read the largest battery testing thread on the Internet, go to this link https://www.rcgroups.com/forums/show...st-Comparisons

Pinkz

Turnigy Graphene 2S shorty were out last year, 6-7++ months before any others released. reason you did not see them much, these packs were at the time only available thru hobbykings HK warehouse and shipping, hazmat handling etc fees were on the order of $45+ added to each pack. these packs were able to go 4.35+ per cell although they weren't advertised. racers that had them swore by them as being insanely good

prior to graphene formal announcement from various companies....protek had three regular 2S lipo packs of different MAH, one of those three, but not the highest was 4.35 per cell capable, also not advertised, but was well known among 17.5 class racers. LRP had packs not labeled as graphene, but where labeled as "outlaw" that could be also charged at 4.35 per cell.

Cyberlawyer

I have three if the 4s 5000 mah turnigy Graphine lipos for my 1/8 e buggy. They are nothing short of brilliant. Huge power on tap and longer run times than many batteries rated at a higher capacity.

I did have one pull off its internal tabs after a fairly massive crash, but it was clearly user error on my part. Not had it happen since, despite repeated abuse since.

Mirkinator

iTrader: (3)

I was seriously looking into these but then realized how heavy they are? Like 2x the weight? I assume its because they put cells in parallel, which almost seems like cheating imo. Anyone know if this is inherent of graphene batteries?

Pinkz

2s pack built internally in a parallel config would be same as a 1s pack 3.7v

graphene packs are still basicly LIPO packs, they are not heavier, believe hobbyking has pack weight wrong at 505g. lipo and graphene lipos are pretty close in weights and vary by manufacturer, nothing drastic

Gens Ace 2s Shorty LiPo Battery Pack 60C w/4mm Bullet (7.4V/5000mAh) 213g
Reedy Zappers 2S Hard Case LiPo 70C Shorty Battery (7.6V/5800mAh) 223g
Team Orion 2S Carbon Pro Ultra 110C LiPo Shorty Battery (7.4V/5000mAh) 217g
LRP Light Stock Spec Shorty P5-HV Graphene 2S LiPo 60C Battery (7.6V/4600mAh) 206g
Team Trinity Titanium Shorty 2S 50C Hardcase LiPo Battery (7.4V/4500mAh) 204g
ProTek RC 2S 100C Silicon Graphene HV Shorty LiPo Battery (7.6V/4900mAh) 203g
Fantom Racing Competition Series Shorty 2S LiPo 70C Battery (7.4V/4600mAh) 216g
Fantom Racing Competition Series Shorty 2S LiPo 70C Battery (7.4V/4600mAh) 216g

billdelong

iTrader: (33)

I started sharing my experience with Graphene on post#123 here:
Anything better than LiPo on the horizon? - Electric Motors, ESCs, batteries, etc. @ URC Forums

JAE

iTrader: (30)

Turning graphene or protek LIhV graphene? Anyone compare both?

Pinkz

the turnigy graphene pack was never sold or touted as a chargeable to 4.35v per cell pack either were other packs that had this capability 6-7++ months ago other than the LRP Outlaw packs. so unless you charged at 4.35, you would not get results that a graphene could produce. even to this day, there is no mention that this pack is 4.35 per cell capable. also if the pack was not charged at the higher rate the pack probably did not reach it's full MAH capacity to perform vs the LIPOs it was tested against
https://hobbyking.com/en_us/graphene...connector.html

last year when US based sellers released their LIHVs we had some oval racers do testing: charging, and graphing discharges. they recommened, if you go to a track that enforces 4.20 per cell bring LIPOs, allows 4.35 to have LIHVs. this is what they found in a nutshell

charging LIHVs (graphene-LIPOs) at 4.20 per cell, then discharging they did not outperform LIPOs (standard-LIPOs) when graphed out. some they did precycling, others none. this was done at various amps 10 to 70. LIPOs were better.

charging LIHVs at 4.35 per cell, everything changed drasticlly, and the LIHVs outperformed LIPOs in all tests and performed as sellers advertise. even at 10 amps, charged at 4.35 per cell the LIHV outperformed LIPOs.


sellers advertising and statements on LIHV, this is were i believe there may be a issue and confusion. will use some examples and highlights, hopefully brand loyalists won't flame.

on this pack in the overview, ProTek RC 2S 100C Silicon Graphene HV Shorty LiPo Battery (7.6V/6100mAh) it states: "While these batteries are technically LiHV cells, they can still be charged with a standard LiPo charger. The overall voltage and capacity will be slightly less than if charged to LiHV specs, but the performance will be better than a standard LiPo thanks to the reduced weight and low internal resistance." the pack is not a 6100mah pack unless charged at the higher rate.

LRP Stock Spec Shorty P5-HV Graphene 2S LiPo 60C Battery (7.6V/6000mAh) does not state to have a difference, only saying they are "100% compatible for 8.40V (2S)" and "Charge with your standard LiPo charger for 8.4V or with LiHV charger for 8.7V". LRP does not makes claims of equal or better discharge curves, run times, etc

Reedy Zappers HV 2S Hard Case LiPo 100C Shorty Battery (7.6V/4800mAh) overview: Even when the typical 8.4V (4.2V/cell) charging limit is enforced, the battery still offers a significant advantage thanks to a flatter discharge curve -- which results in more voltage deeper into the race. For those who race where approved batteries are required, 7.4V are available and feature the same discharge curve characteristics as the 7.6V versions.

Fantom Racing 5500mAh 7.6v 2S HV Pro Racing shorty LiPo in their overview recently on New Fantom Racing 5500mAh 7.6v 2S HV Pro Racing shorty LiPo :: LiveRC.com - R/C Car News, Pictures, Videos, and More were some interesting tidbits: "These HV batteries are only an advantage if you are allowed to fully charge them to 8.7 volts." and "IMPORTANT: This battery requires a charger that is capable of charging up to 8.7 volts (4.35 volts per cell) to obtain the maximum performance out of it." pretty much along the lines of what midwest oval racers came up with last year. Fantom even recommends you go with a standard LIPO if you can't charge to 4.35.

things that makes you go...hmmmmmmmm

brainiac

iTrader: (11)

So just curious about these batteries, and I haven't been able to find anything specific online.

To charge these batteries need a special charger to be charged to their maximum 4.35 per cell? Or will simply charging them on a lipo charger in lipo mode get them there?

thanks

jabroni racing

iTrader: (46)

I would think most chargers have a adjustment for that

Mirkinator

iTrader: (3)

Says right on their site 695grms for the 5600mah battery. Compared to a SMC 7200 with almost %20 more runtime at 310grms. Have you weighed one yourself or anyone? Dont see why they would put it wrong when it has a huge effect on performance...

https://hobbyking.com/en_us/graphene...connector.html

True Spec Premium 7.4V 7200mAh 131 Amps/90C 5mm Inboard

sxygtr

iTrader: (2)

anyone tried in a team C 1/8th scale buggy?

jabroni racing

iTrader: (46)

Specs: graphene are Same weight as the SMC batteries, smc are 205
Capacity: 4600mAh
Voltage: 2S2P / 2 Cell / 7.4V
Discharge: 90C Constant
Weight: 206g (including wire, plug & case)
Dimensions: 96x47x26mm
Balance Plug: JST-XH
Discharge Plug: 5.00mm (in case)

timannnn6

iTrader: (140)

They always put a "shipping" weight and not the actual battery pack weight. They include the charge cables, box, etc. They've always done this. Look under the specs tab on the page you linked to...295g for pack weight