Gist of the link – just use the right charger, at least, one with a "LiPo" setting. A properly designed LiPo charger will keep the process as safe as it can automatically, by hopefully limiting the voltage that it charges to and balancing the charge between the cells in the pack.
Basic electric –
Volts are a measure of the potential force in the battery that will eventually drive the current round the circuit (think "head of water". Amps is a measure of the rate of flow of the current driven round the circuit by the force of the volts available (=water flowing down pipe). Amp-Hours is a guide to how long you can draw a given current for before the battery is empty(+number of gallons in header tank). The important figure for LiPos is the "C" rating (the bigger the diameter of the pipe, the faster the water can flow). The discharge figure tells you how many amps it can deliver, there is usually another "C" figure telling how fast you can charge at.