DX3R charge port question/issue

[fred0000]

I finaly got around to making a charge adapter for the DX3R, I know that its polarity sensitive, checked it with my voltmeter aswell as my charger (reverse polarity protection) so I picked up some 1.5v 2000mah AA's and slam them in and it was showing good voltage so I was happy, I wasn't convinced they were fully charged from the factory so I hooked it up and set my charger to NiMH 0.5a charge rate.



everything was going smooth, sat and charged for about 3 min, then I heard a cell fail (i'm pretty sure 3 of the 4 failed)



I cleaned the battery area of the radio best I could and slapped in some normal AA's to make sure it was still working wich it is, I just don't know what I could have done wrong.

the only thing that comes to mind is over charging the cells but it should have cut off at peak before a failure

the question I guess is, are you guys using certain battery's when you use the charge port?

the charger I was using is a Electrify Triton EQ if it matters.

[freetimecrawler]

To be honest with you, the DX3R is the easiest radio on batteries I've ever owned. I get at least the 1st half of the season (6 comps) plus scaler time in with 1 set of regular alkaline batteries. I never saw a need to use the charge port and rechargeables.

[fred0000]

Originally Posted by freetimecrawler

To be honest with you, the DX3R is the easiest radio on batteries I've ever owned. I get at least the 1st half of the season (6 comps) plus scaler time in with 1 set of regular alkaline batteries. I never saw a need to use the charge port and rechargeables.

thanks, it's been great on battery's like you've said, I just thought it would be kinda cool to take advantage of the feature, i'm not to sure I want to try it again, unless others pipe up with their success using the DX3R's charge port with their battery chargers.

[AreCee]

I use rechargables but charge them externally. I have a couple AA/AAA chargers so I never bothered making one to plug in.

BTW: the 2200 mah AAs I use hold their voltage steady a lot longer than alkalines. It'll stay at 4.8 to 4.9 volts for a couple crawl (two classes) and race (three classes) days.

[bob1961]

i read a thread bout two years ago, but i'm not sure but i think the 1/8" plug that goes in the plug there the normal positive part of the plug should be the negitive with the DX3R radio for some reason....i could be wrong and check before trying that....that's the reason i didn't go chargables in mine was the reverse poles on the plug it needed to be....like i said i could be wrong so double check before trying it that way, check there website and/or even call spektrum.......bob

....

[fred0000]

Originally Posted by AreCee

I use rechargables but charge them externally. I have a couple AA/AAA chargers so I never bothered making one to plug in.

BTW: the 2200 mah AAs I use hold their voltage steady a lot longer than alkalines. It'll stay at 4.8 to 4.9 volts for a couple crawl (two classes) and race (three classes) days.

if I do decide to get some new rechargeable AA's i'll charge them in a reciever pack AA case incase of failure.. again, dont want anymore of that crap in my radio.

[AreCee]

Originally Posted by bob1961

i read a thread bout two years ago, but i'm not sure but i think the 1/8" plug that goes in the plug there the normal positive part of the plug should be the negitive with the DX3R radio for some reason....i could be wrong and check before trying that....that's the reason i didn't go chargables in mine was the reverse poles on the plug it needed to be....like i said i could be wrong so double check before trying it that way, check there website and/or even call spektrum.......bob

....

Center is negative.

[fred0000]

Originally Posted by bob1961

i read a thread bout two years ago, but i'm not sure but i think the 1/8" plug that goes in the plug there the normal positive part of the plug should be the negitive with the DX3R radio for some reason....i could be wrong and check before trying that....that's the reason i didn't go chargables in mine was the reverse poles on the plug it needed to be....like i said i could be wrong so double check before trying it that way, check there website and/or even call spektrum.......bob

....

Originally Posted by AreCee

Center is negative.

sure is, I double/tripped checked before trying it, and after the failure, the charge cord is correct

[fred0000]

i've decided to try it again, this time i'm going to wait and run down the batterys and try a full charge instead of "peaking" them.

i'll be charging them in this the 1st couple times to see how it goes, I don't want all that crap in my radio again.