Couple brain farts.
I had a gens ace fail on me. When I figured I had nothing to loose , I took the battery apart and was amazed at the weak connections. In fact so weak it blew ,so I was able to fix and reuse pack. I beleive I seen a video on you tube saying this was a common weak point on gens.
Also I wonder how many lipo battery companies there are? like everything else these days there could only be 2 chinese factories with a thousand different stickers of different companies to stick on the batts.lol

Is the weight listed for the Turnigy Ultimate 6000 pack accurate? Hobby King shows it at 456g - That is 100g + heavier than the competition. Can't imagine where I'd put another 3 ounces on my car to get the L-R balance adjusted.

That 6000 mah is a standard size battery. The 4600's are shorty's. I'm getting an Ultimate and Graphene 4600 shorty soon and will perform the same baseline test. I will post the results.

OK, but my point is - the Turnigy is listed as 100+ grams heavier than the same size and style Gens Ace, Protek, SMC batteries.

So, not only do I add 3 oz more of battery weight, I add another 3 oz to balance the car = 6 more oz than the competitors. Not sure I can trade off the extra weight for a little more punch.

I've had pretty good luck using spring pre-load adjustment for corner balancing without any issue, while I agree that position of weight is more optimal, a few extra turns on the rear shock collar is almost as good with the testing I've done as opposed to adding more weight.

Ah, ok. Now I see your point. For me, it wasn't "a little" more punch. It was a lot more punch that it was very noticeable. And, to your point, it was heavier than both shortys but I was still faster with it! What's interesting is that the 6600 mah and 7500 mah version of the Ultimates are also roughly the same weight as the 6000.

[I just weighed mine fully charged with the wires and connectors = 333 grams]

I just looked at the website. The 456 grams must be "shipping weight". They show it as 340 grams as "unit weight". See pic below.

[Damn... hope I didn't waste my money buying an Ultimate shorty and a Graphene shorty... Looks like the 6000 mah is $36!!! Damn good price for that battery!]

The weight Hobbyking lists is shipping weight; box, charge cable, etc. You have to click on specs to see actual pack weight.

And even then, it's still not accurate.

Thanks all for clarifying the Turnigy weight deal - 340g is not too bad, not the lightest, but at least comparable. Never been a big Hobby King fan, so I'm not familiar with their spec sheet terminology.

Thanks for the input.

My Turnigy 7500 is about 310g and the 6000 is a bit lighter than that. Not sure how much lighter though.

Turnigy Ultimate 2S 6000 should be around 295g-300g. They are heavy when compared to similar 6000 packs but I believe they have better IR than most.

Several racers from my track have bought these packs and most are averaging .8-1.5 IR per cell. These numbers are from ichargers.

What vehicle are you using to test these batteries?

Different size batteries aside, I think you could really benefit from updating your charge/discharge setup. Even if you don't plan on doing high current cycles, you can gain a lot of accuracy for the info you want. I have an iCharger 406duo and I love it. I remember as a kid there was a guy that had a battery matching company. His charger was a Turbo 30 or maybe a 35. I wanted that charger sooooo bad.

I'm running my first 5 low C 50% cycles right now. Usually I do the discharging with my car, but this time I'm using the charger to do both. I can download the information off the charger if I want, but I mainly just watch the numbers as the charger cycles to make sure nothing is out of the ordinary. So far the IR numbers look pretty good.

Ok, so I got my new Turnigy Ultimate 4600 90C shorty and Graphene 4600 90C shorty yesterday. I cycled them once and did the same "baseline" as my other batteries...

Go figure....

Ultimate 4600 90C
mAh: 4338 mah
IR: 18 mOhms
Avg V: 7.49 V

Graphene 4600 90C
mAh: 4133 mah
IR: 26 mOhms
Avg V: 7.42 V

So what did I learn? The Ultimates was $37; the Graphene was $57. The Graphene came in a nice "fancy" box. This was was NOT worth the extra $20...

I hope these batteries improve over 20 cycles or so. I will surely be tracking them. But as of right now, SMC is not going to be in my future shopping lists considering my personal results and they didn't even come with any wires or connectors. At least both Turnigys came with them along with 5mm to 4mm plug adaptors. The Graphenes are complete marketing genius on their part (scumbags!).

It depends. I am very scientific. I have one variable when testing. I use the same car, at the same weight. I select charge rates based on pack capacity.

I don't just go rc racing. I run a race program.

Just to clarify if you are ever wondering on IR. IR is like proportional to the capacity of a battery of the same chemistry. So a 6000 mAh shorty will show a much better lower reading than the 4600's.


The best tool and I know you are going to buy it is the ESR meter available at Progressive RC. This is the standard and anyone else with this tool will be able to report their findings and we can all see and not worry on how each charger is calculating this. You can measure at Storage Voltage around 22 to 25C temp and charged up if you like.