ZIPPY Flightmax 5000mAh 4S1P 40C (USA Warehouse)

 chad 27 points

unfortunately the zippy 40C 4S 5000mah lipos have a 1 cell defect that has not been corrected yet. As soon as a high amount of amperage goes thru the tabs, (the weak link in the tabs/solder joints)* melts it in a few seconds. I suggest buying 2 2S 5000mah 40C zippy's and run them in series. I have had no problems with the over 10 packs I have, not a one!!

 Keith 10 points

If you are using the "universal" traxxas connectors (with interchangeable tips) on your batteries throw them out. Have the exact plug type needed soldered on. Great idea by traxxas but they don't maintain a good connection.

 chad 27 points

that is not a "traxxas" plug but, it is a "venom" brand plug you are referring too. traxxas doesnt make any kind of plug but their own TRX plug. also most cell you get from any brand has a chance of throwing cells and breaking tabs. I personally only buy Zippy 5000mah 40C and 45C 4S lipos and havent had a bad battery yet. on the other hand I have had 5 outta 6 turnigy nano packs puff cells, throw cell tabs and just die for no apparent reason. I know it isnt my charging or use or else the zippy's would also do that. make your up your own mind but personally for me* you'll never see me with anything but a zippy.

 chad 27 points

Also, I only use traxxas brand connectors (not the cheap wannabe copies those are ****!) and have not a problem with them. if you are having problems with fitting the large wire onto the tab of the connector just tin the wire with flux and solder and after it cools, take a dremel tool and grind some of the tinned are to make it better fit into the hole where the tabs go. I have done all mine, my friends and even some racers at the track that use 8-10 guaged wire packs and they dont have any problems anymore.

 Andrew 6 points

Are you sure you lipo cut wasn't set too low? I have 2 of these getting beat to piss in a XTM Rail with a MMM on a 2200KV geared 14/46 and these packs stay cooler than the 30C equivalents I use. I totally enjoy thees pack and about to order more for the price of 1 * a brick and mortar I can score 3 of these easy. To bad our home land restricts the rights and over taxes manufacturing or else it would all be made here.

 LUIS 2 points

can a xtm rail take 5s lipo

 Andrew 6 points

It can take a 6S Lipo and is hella fast doing so. Al tho I recommend a custom Aluminum battery tray I Broke the plastic and that sent the lipo into the spur and FIREBALL EXCITEMENT ensued. With about $15 * home depot scored some 1/8 thick 2 inch wide aluminum strip then whent to town. Having a buddy with a heliarc helps.

 Keith 10 points

Chad, yes, totally my fault on my response. The Venom universal connector for Traxxas type plugs do not maintain a good connection... Correct it is not a Traxxas plug.