matoran629

Hello. I got a ParkZone T-28 Trojan for Christmas, and I finally flew it last week. I have been keeping my LiPo charged for 6 months, is this all right?? I went to the field and flew, but after the flight my battery took a hard drop onto dirt. It is now puffy, will it be all right?? I bought a new 2200 MaH today, but I'd like to have a 2nd battery. Suggestions[]

BeanerECMO

My Feedback: (1)

Not that they are necessarily inexpensive, but I wouldn't trust it except for bench testing things. Just ask, " Is it worth putting it in an airplane and then have a fire airborne (or anytime), and you know something is not right beforehand?"

jdetray

A puffed lipo is a damaged lipo. I wouldn't use it or keep it around. I especially would not attempt to charge it!

- Jeff

cjg

Replace it. Store your Lipo's at about 1/2 charge, not fully charged. If it was damaged in a crash discard it. Search Youtube for LIPO fire and see what could happen.

I have had good luck with Hobbycity ABF 2200mah batts for $19.95.

they are cheap, take about 2 weeks to arrive, and the balance plug fits the PZ charger that came with your T-28. They don't have the standard Trojan plug, but I had converted everything to Dean's plugs. I highly recommend converting to Dean's. They are a bit longer than the stock batteries but fit well. The stock T-28 tends to be nose heavy anyway, so it will shift your center of gravity back a bit, but shouldn't hurt your flight characteristics, may actually improve them.

At some point upgrade to a better charger as well.

Xpress

When in doubt, throw it out. If it's questionable, then it's probably not ok to use.

In your case, don't use it. If even one of the cells is puffed up, then that means no to using.