afive6troll,
I had trouble with the eflite balance charger; it worked for about 5 charges then kept coming up with the error lights after charging a few minutes. I lost the receipt, otherwise would have contacted eflite. The CPPro is a rather pricey heli, and that charger is part of the premium price. I feel they should have included something better, or lose the thing and reduce the price of the heli.
Also have had trouble with sudden drops in altitude; although I haven't flown it outside yet, just in the basement. Thanks for revealing that, I'm kind of concerned about going outdoors at a greater altitude. Also have had the gyro go haywire too, and the tail spin uncontrollably, then come back online. I' don't think I'll bother upgrading this; just fly and repair, fly and repair.
Oh, I found a balance charger at Balsa Products that includes the balancer in one unit. It's called the CY-550B balance charger for about 80 beans. It has some funky connector strips that you can buy for just about any battery. It seems to work OK, but is of lesser quality than my Triton Jr. It's classic Chinese........Franz