city has come out with a new line of LiPo batteries called the
Nano-Tech line. The big benifits of these batteries are Physically
smaller, Lighter, Higher Burst rate, Lower Internal Redistance, and a
Higher Max Charge rate. I have tested 3S 2200mAh 25C and 6S
3000mAh 25C packs. I have a number of friends right now running the 3S
2200 25C packs as well. Those 25C packs are performing every bit as
well as the 30C equivilant Turnigy packs I have. The Internal
resistance is lower (that's a good thing) than the 30C pack or the
same. The packs are not puffing at all and come down the same
temperature or cooler as my 30C packs. Hobby City has
that they were more concervative on their C rating on these batteries
than before and I would agree this is the case. I have
charges on both batteries now and they are performing the same as after
the break in flights. No puffing is noticable and they are as
square as a brick still. They are comming with some good
industry standard plugs (not DEANS) and if you are looking to switch
standards, these are good for the size batteries they are on.
specs will show the discharge plug that comes with it (XT60 shown above
in the 2200mAh 3S 25C pack). I have been able to charge my
packs using an iCharger 3010B at as high as 5C while connected up to a
Marine Deep cycle battery at the flying field. By not pulling more than
80% out of the packs, the cells stay nice and balanced during discharge
which also speeds up the field charge as the battery cells stay nice
and balanced. I have averaged 8-9 minutes to recharge these packs under
my normal use. But if you discharge more than me, you can expect 10-15
minutes to recharge depending on your ability to provide the current
during charge and how well you have been treating the packs.
you are concerned about size of the battery and you want a pack that
can charge fast, then it's worth it to concider the Nano-techs over the
standard Turnigies. I do not recommend spending extra on the
Nano-tech's for Novice/Beginner fliers. You should be
about getting more packs of a 25C rating and getting more
total flight time flight time.
They now have much higher C rating packs. 35C, 45C and even 65C packs.
The 45C packs are Extreamly price compeditive as well as the
packs. The 65C packs DEFINITLY produce more power in nearly
same weight than the 25C. About 10% more.