How to see the battery charger is fully charged, how long does it take to charge the 12v battery

The battery charger is undoubtedly a very convenient power supply device. However, for some newcomers, they may not be very familiar with the operating knowledge, and don't even know how to see if the battery is full.So, how do you think the battery charger is fully charged, and how long does it take to charge the 12v battery, today we will answer everyone’s doubts one by one..

Generally speaking, there will be a multi-color indicator light on the charger, which will be displayed in red when the battery is being charged. After being fully charged, it will be directly converted to green, so when we see the green light, we can stop charging. Of course, the current chargers on the market are very intelligent. When fully charged, they will directly display the word "Full" on the display, which can be said to be more intuitive than the indicator light.

As for how long the 12v battery is charged, it can be fully charged after 5-10 hours of normal charging. Of course, a battery with a larger capacity will naturally take longer (as shown in the figure above). However, it is best not to overcharge frequently. Although the current generated by the charger is not very large, because the electrolyte is in a boiling state for a long time, not only the fine particles on the surface of the active material are prone to fall off, but also the grid may be oxidized in severe cases. , Causing the active material to be loosely separated from the grid, so everyone must be vigorous when charging.