PDA

View Full Version : Li-whatever versus NI-mh


lperagallo
03-30-2008, 11:15 AM
Sorry to the Bergen readers, I posted this there also....;) OK, so the verdict is in. The batteries for my turbine need to be replaced. As I sit here and think, I wonder why we use Li-whatever in anything. Most times they need a regulator, they are sensitive, expensive and quite frankly not worth the pain. Why can't I just use some good 4500MAH Ni-MH?s While weight may be an issue for smaller helis, it really isn't that much of a problem in the turbine.

Were there more problems with batteries going bad in turbines before the Li-pos, Li-on, Li-mn?

What makes the Li-anything make it better? What benefits do we get?:dontknow

Lou

BarracudaHockey
03-30-2008, 02:29 PM
For one thing they can be charged and sit for a couple days, week or whatever and not self discharge so they are ready to go when you are.

wlfk
03-30-2008, 03:45 PM
I would have thought A123 cells should be ideal for this application - safe, good shelf life, lighter than NiMh and a better lifetime in terms of number of cycles. The drawback is having a charger for them (or not).

K