Nine 3.7 volt rechargeable batteries are used in parallel when charging, what size charger is needed? It depends on the capacity of each rechargeable battery. If the capacity of each rechargeable battery is 2 amps, then the total capacity of the 9 cells is 18 amps/hour. Generally, when charging a rechargeable battery, the current is 1/20 to 1/10 of the capacity. The charging current should not be too large. If the charging current is too large, the battery will easily become hot or even hot. This will affect battery life. Just feel warm to the touch.
Which current charger should be used to charge a 48V 20A lithium battery?
The rated voltage of 72v60A lithium battery is 72v and the rated current is 60A. When the 72v60A lithium battery is charged with a charger, the rated voltage of the charger should be the same as thenominal voltage of. the 72v60A lithium battery. The voltage is the same, but the charger's current rating is higher than the lithium battery's rated current, which is between 60 and 65 amps. Therefore, the 7260 lithium battery uses a charger between 72v60 and 65 amps.
0.8-1.2A.
Lithium batteries are generally divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation product of rechargeable batteries, lithium metal batteries, was born in 1996. Its safety, specific capacity, self-discharge rate and performance-price ratio are better than those of lithium-ion batteries.
Precautions for charging lithium batteries
The chemical activity of lithium batteries is much more active than that of lead-acid batteries, et the requirements for chargers are higher once a brand. If an unsuitable charger or charger is used, fast chargers not only affect the life of the lithium battery itself, but also may damage and short circuit the diaphragm due to overheating, resulting in an explosion.
When electric vehicle lithium batteries are purchased, they usually contain 2 to 3 electric cells and are rarely fully charged. Long storage time at full power will reduce the capacity of the lithium battery.