Quickly reading thru the posts here.

Some revelant points to chargeing have been brought up and should be adhered too I guess some of us(Battery Guys) just do things that we assume others do and take this for granted that every one knows what to do and what not to do when chargeing/dischargeing these cells.

As Greg and others have pointed out.YOU MUST READ and UNDERSTAND all instructions that are provided with anything one purchases or uses. If in doubt ASk..

Picking up on two points here that would be revelant to the outcome of both these incidents thathave occur and i couldnt see where anyone has mentioned this..

Yes your mv settings are important BUT also When a battery is charged it builds up heat which changes characteristics of the materials used in its construction.. In simplicity the hotter it gets more gas is generated until the pressure build up causes it to vent( In most cases this venting doesnt occur and when the cell starts to cool the gas is absorbed back into the cell material.

When a cell has charged the internal heat is still greater than the exterior, therefore it will still heat up after charge until this is dispersed threw the outer case.

The battery in this case as stated was placed back into a non conductive battery case{was this a foam lined box( as was the other pack that expoded)} This alone would act like a minature oven and most likely generate more heat again...Causing the battery to produce excess gasses than what it would if left on a bench in a ventilated area. This would in effect creat a pressure container??


Not only do we need to be educated in the proper use of Chargers/dischargers but in general the proceedures of manageing the cells after the charge process.This also can occur in reverse with severe discharge with high loads(current draw)