Many folks don't know - 80% of lithium battery fires are caused by the charger. Lithium batteries themselves are generally safe when used properly. But charging them incorrectly can lead to disaster——boom!
So how do you pick the right charger?
First, look at the voltage. The charger's output voltage must match the rated voltage of the battery. For example, a Sycain 25.6 volt lithium battery needs a 29.2 volt charger. The charger voltage should be slightly higher than the battery voltage, around 1.1-1.2 times. This small difference is what allows the charging to happen.
Does higher voltage mean better? Not at all. Think of the inside of a lithium battery like a swimming pool. During charging, lithium ions swim from the positive to the negative terminal. The "lanes" in the pool are designed for only 10 electron s side by side. If the voltage is too high, too many electrons flood the lanes. Next, the pool is busted and the battery is overcharged.
Second, look at the amperage. The charger's output amps should be 10-20% of the battery's capacity. For a 100 ampere-hour lithium battery, the best charger output is 10-20 ampere. Too low, and the battery won't fully charge. Too high, and the battery overheats.
Finally, check the casing material. Cast aluminum is best for safety, then aluminum alloy, and plastic as a last resort. In summary - spend more for cast aluminum if you can. If not, plastic casings can work in a pinch.
Of course, the charging method is also important. Batteries generate heat during charging, so avoid charging in high-temperature environments or for prolonged periods.
This is the standard Sycain lithium battery charger. It has an aluminum casing and multiple safety features. The charger is compatible with multiple voltages and has protection from overload, short circuit, etc. We build reliable products for lasting partnerships.
