Airsoft Canada - View Single Post - Tokyo Marui FN P90 And The Mystery Of The Melting Battery

Nabisco_Lobstrosity · August 25th, 2008, 01:23

I bought a used Tokyo Marui FN P90. I've gamed it twice, and used it around the house a handful of times. Up until today, the only battery I've ever used in it is this -

http://www.wgcshop.com/pcart/shopper...1700P_srch_p90
A 1700 mAh NiCd Sanyo battery. Up until today, nothing unusal about it.

I have a universal smart charger, that can charge either NiCd or NiMh batteries. I've had it for years.

So here's the fun part -

I wait until I get to the field to connect my battery. The moment I do connect it, before I even close the back of the P90, I can smell burning plastic. I get my face down closer to my P90, and I can actually hear something sizzling. Wasting no time, I disconnect the battery from the gearbox and use a screwdriver to pull out the battery. It's twisting around on the dirt, sizzling - plastic covering melting, the cell connectors are fizzling. Even after being disconnected, it's still smoldering for a good twenty minutes.

Okay, so my question is - what the hell? I've never had a battery do this to me. Now it looks like I set it on fire. The connectors can only connect one way, there's no place for metal to make contact with any conductive part of anything else inside my P90. A couple minutes later, I put in my backup battery, and my gun worked fine. It worked fine for the rest of the day.

All I did to mod the P90 to fit the battery was the same, standard stuff you'd see here, at Arnie's -
http://www.arniesairsoft.co.uk/?filn...90_battery.htm

Has anyone else run into the same sort of problem when modding their P90 for the J-shaped batteries?

August 25th, 2008, 01:23	#1
Nabisco_Lobstrosity Trader rating Join Date: Jun 2006 Location: Charlottetown, PEI	Tokyo Marui FN P90 And The Mystery Of The Melting Battery I bought a used Tokyo Marui FN P90. I've gamed it twice, and used it around the house a handful of times. Up until today, the only battery I've ever used in it is this - http://www.wgcshop.com/pcart/shopper...1700P_srch_p90 A 1700 mAh NiCd Sanyo battery. Up until today, nothing unusal about it. I have a universal smart charger, that can charge either NiCd or NiMh batteries. I've had it for years. So here's the fun part - I wait until I get to the field to connect my battery. The moment I do connect it, before I even close the back of the P90, I can smell burning plastic. I get my face down closer to my P90, and I can actually hear something sizzling. Wasting no time, I disconnect the battery from the gearbox and use a screwdriver to pull out the battery. It's twisting around on the dirt, sizzling - plastic covering melting, the cell connectors are fizzling. Even after being disconnected, it's still smoldering for a good twenty minutes. Okay, so my question is - what the hell? I've never had a battery do this to me. Now it looks like I set it on fire. The connectors can only connect one way, there's no place for metal to make contact with any conductive part of anything else inside my P90. A couple minutes later, I put in my backup battery, and my gun worked fine. It worked fine for the rest of the day. All I did to mod the P90 to fit the battery was the same, standard stuff you'd see here, at Arnie's - http://www.arniesairsoft.co.uk/?filn...90_battery.htm Has anyone else run into the same sort of problem when modding their P90 for the J-shaped batteries? __________________ Nabisco Lobstrosity -------------------- Last edited by Nabisco_Lobstrosity; August 25th, 2008 at 01:28..