This is absolutely the most important thing when dealing with ANY battery.
I maintain large three phase UPS systems in the 50 to 75 Kva range, they hold entire data centers up while generators come online, synchronize, and take the load. Over discharge and time are the most typical causes of battery failure, over current is the most common cause of catastrophic failure. In fact, I have never saw a battery vent and explode any other way, I am sure it can happen because of manufacturing defects and such, but if you exceed the current limit of any battery, regardless of types, they can and do explode. Over drawing of current causes the battery to enter what is called "thermal run away". Basically the battery gets hot due to the over current situation and shorts internally, the result is not pretty and usually result in the failure of the entire battery bank.
Solid advice jpcwon is giving you.