well the first few times I ran it it wouldn't charge higher than 4.0v each cell. and the run time was pretty short compared to the turnigy. I get 18 min at min on it. I didn't time it but it seemed at least 8 min shorter.
I've ran and charged it about 3 times now and it's finally taking a full 4.20 charge but I put it on 4amps instead of 5 and 6 like I did the first few times. maybe that's too high for a new batt or too high for the gens ace batt.

it didn't say not to. all I know is the 3 turnigy batteries I have all take a high amp charge no problem. the nano's I have say they can take a 10+ amp charge.

I just bought these two packs. They've been cycled twice. The data is from a charge that brings them up to the storage voltage after the send run. First is a Promatch 4600 shorty, the other is a SMC 4600 (not quite 4600 according to their site) shorty.

On the GForce 3

On the Turnigy 6

That's it?? And you're having problems with both?

I just ordered 3 5600mAh 70 C's from SMC for my kid's trucks (T4.1, SC10). I'll let you all know what I think after we get them. I will be comparing to a 5300mAh 65C Gens Ace so it won't be exactly apples to apples but close. The SMC +7000mAh 70C's that I want for my SCTE are due in Feb 8th.

I have a powerlab 8 on the way, and I plan on logging battery data after every race, and record down the cycles in between data logs. The majority of the data will be from SMC 7200 70c batteries, but i do have some Reedy 6500s that I will compare them too.

I am sure my data will reflect Danny's hard work at SMC!