SCOTT42

My Feedback: (1)

Hello all, so I just purchased a century predator carbon 90 nitro, it is set up with a double 7.4 Li-ion battery pack so makeing it 14.8 V. My question is? Is that normal? I was told the digital servos use a ton of juice and that was the best pack at the time it was flying wich was a few years ago. Could I or should I switch over to a 14.8 lipo now? How can I charge the Li-ion battery? and test it? I dont currently have a pic of the battery but I do have a pic of the heat disapator, or heat sink i guess its called? That it plugs into. Im looking to hopely set this up so one day I can fly it with the right teachings.

BarracudaHockey

My Feedback: (11)

Thats not a 14v system, its a parallel 7.4 volt system with double the capacity (flight time) and redundancy. Plug up a 4 cell Lipo and you'll let the smoke out.

SCOTT42

My Feedback: (1)

Thank you, thats why I ask. Now is that battery what everyone else is useing now, or is there something better?

BarracudaHockey

My Feedback: (11)

There's lots of choices. If the batteries are good, go ahead and use them, there's guys using them and they work just fine.

Lots of folks are using Lipo's and a voltage regulator, some use A123.

Rafael23cc

My Feedback: (6)

That is a Fromeco Regulator. I have several Arizona Regulators made by Fromeco in my helicopters. Since I have a little older equipment, I prefer not to use LiFe yet as I slowly upgrade my equipment (by attrition) then I might look into LiFe in the future and do away with regulators altogether.

To charge a LiIon you can use the same settings as to charge a LiPo. Set the voltage (7.4v) then the capacity, and watch it go. Best is that they are not as volitile as the LiPos.

Rafael

chris6414

My Feedback: (10)

I use those same regulators. The connector on the side is for adjusting the voltage. I run mine at 5.1 but I believe they will adjust up to 6V. You just short the pins and have a meter hooked up. Each tap of the pins brings the voltage up and down.