The battery of the wireless car wash gun is like this battery, the first charge is recommended to be 5 to 6 hours.
First, after a battery like this has just been purchased, it does not need to be recharged. Use the remaining 1\/3 of the electricity and then charge it.
Second, if this is charged normally, under normal circumstances, 5 to 6 hours is enough.
In the third winter, if the frequency of use is not high, this also requires ten to 15 days or so to charge a charge, because the winter battery is prone to decay!