Clamshell shorting out NTN9177

[madrabbitt]

I've bought multiple NTN9177A clamshells for the XTS3000/5000 radios, and have used them without a problem on extended fire assignments.
I recent got a new one, and as soon as I loaded it with batteries, several of the batteries became hot to the touch.
I removed the batteries, took the clamshell to the fire cache, let it cool down in the AC for a bit, then tried a new set of batteries, and same thing.

It looks like there may be an IC of some kind inside the housing, so I assume theres some type of regulator or control circuit, and its not just a dumb battery holder like the BK radios.

What are the possibilities that its shorted out?

And since these arent serialized, i assume that theres probably not a warranty if I cant find proof of purchase?

 

[ecps92]

There was a problem and many taken out of service due to shorting.
This was atleast 5-7+ years ago, don't has a SBN to give you anymore reference, but there might be something on the NIFC site about it.

I've bought multiple NTN9177A clamshells for the XTS3000/5000 radios, and have used them without a problem on extended fire assignments.
I recent got a new one, and as soon as I loaded it with batteries, several of the batteries became hot to the touch.
I removed the batteries, took the clamshell to the fire cache, let it cool down in the AC for a bit, then tried a new set of batteries, and same thing.

It looks like there may be an IC of some kind inside the housing, so I assume theres some type of regulator or control circuit, and its not just a dumb battery holder like the BK radios.

What are the possibilities that its shorted out?

And since these arent serialized, i assume that theres probably not a warranty if I cant find proof of purchase?

 

[madrabbitt]

I'll shoot off an email to the NIFC CDO and see if they cant dig up that specific bulletin.

Also, i emailed the dealer, and he told me to ship it back and he'll get another one out. Easy enough.

 

[madrabbitt]

Also, after taking a closer look, it looks like its a 9 volt, with two banks of 6 batteries wired in parallel. Our radio tech said its probably a short in that specific wiring between the two banks.