The 12V 6A charger cannot charge a 12V 3000mA lithium battery.
The 12V6A charger charges the 12V3A lithium battery. The charging current output by the charger is too large, which will cause the temperature of the lithium battery to rise rapidly and the lithium battery to expand. and damage the internal structure, causing the lithium battery to malfunction. The group is scrapped.
This charger should not be originally supplied to charge this lithium battery. If it is a charger used for lead-acid batteries, its end-of-charge voltage is 14.7V, while the maximum end-of-charge voltage of 12V lithium battery is 12, 6 V. If the end-of-charge voltage of this charger is too high, it is too high. This will cause the lithium battery to overcharge and damage the lithium battery.