IF you are planning on staying in the hobby for a while you may want to consider buying something like a Super Test battery capacity tester. This is a less expensive alternative to a computerized charger that will tell you exactly how many milli amps you can get out of the battery pack before it needs to be recharged. BTW, I have compared the test results of the Super Test against a very expensive Cadex charger/analyzer that the hospital uses and the results are almost identical.[8D]
http://www.centralhobbies.com/Electr...rs/vltmtr.html