PeteTheDog Posted October 25, 2013 Share Posted October 25, 2013 Hi all.. New to this page I have an old M4, It was working fine last time out, but I have recently got it out of the war shed to find it doesnt work anymore? Symptoms:- I put in a charged battery (runs fine in my M16) The gun just clicks & the battery gets hot.. Its jammed I thought,, so I took out the motor,, tried it again, the motor spun up. but the my battery burst into flames... I'm no einstien but something tells me something isn't right!! Any advice where I start looking Cheers guys n Gals Link to comment Share on other sites More sharing options...
Mike636 Posted October 25, 2013 Share Posted October 25, 2013 I think that would be a symptom of a short circuit, maybe inside the gearbox ( most likely ) Link to comment Share on other sites More sharing options...
PeteTheDog Posted October 25, 2013 Author Share Posted October 25, 2013 Thats my thought.. just confuses me how it can be working when packed away and Fubar 2 months later.. I'll have to strip it down and have a looksee.. Link to comment Share on other sites More sharing options...
Baz JJ Posted October 25, 2013 Share Posted October 25, 2013 corrosion ? Was it wet inside when it was put away perhaps ? I would have thought the battery shoud be fused ? Link to comment Share on other sites More sharing options...
Supporters sp00n Posted October 25, 2013 Supporters Share Posted October 25, 2013 did you let you battery cool before testing with the motor out of the gun? Link to comment Share on other sites More sharing options...
PeteTheDog Posted October 25, 2013 Author Share Posted October 25, 2013 It was stored in a bag in my loft, so shouldnt be damp, The battery was left to cool before I tried it, plus it was only for literally 5 seconds, in fact the I had taken the battery off of the gun an put it on my pc table when it went.. Yes I thought it should have a fuse too, i have not had it long and have not had it to bits yet.. Looks like that is gonna change real soon.. Cheers guys, just confirmed what I already thought I had to do.. Grrr... Pain in the arse.. Link to comment Share on other sites More sharing options...
Supporters sp00n Posted October 25, 2013 Supporters Share Posted October 25, 2013 how old was the battery? and was it a Nimh or lipo? Link to comment Share on other sites More sharing options...
PeteTheDog Posted October 25, 2013 Author Share Posted October 25, 2013 It was a Nimh, probably 3 or 4 years old.. Link to comment Share on other sites More sharing options...
Supporters sp00n Posted October 25, 2013 Supporters Share Posted October 25, 2013 very odd for the battery to go up after it was removed must be a short somewhere, if you have a multimeter, remove and disconnect the motor, then with the trigger pressed see if you get continuity at the battery terminals. You shouldn't (unless you have a mosfet fitted, then you may) if you do, its a strip down job. Link to comment Share on other sites More sharing options...
Spatch Posted October 26, 2013 Share Posted October 26, 2013 Dodgy battery by the sounds of it and a locked up gearbox, remove the pistol grip and motor, get a little hook inside and release the anti reverse latch to see if the box is locked up, easy to try before stripping it down Where has the battery been stored prior to using it this time? Is it a battery you use currently or one put away with the rifle? Link to comment Share on other sites More sharing options...
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