Lithium Iron Phosphate Battery 72V 40AH With Communication BMS for
ATV
species |
Lithium Iron Phosphate |
Voltage | 32700-72V |
capacity | 40AH |
Batteries | IFR32700 3.2V 6Ah |
size | 521*238*218mm |
weight | 34KG |
Maximum charging current | 30A |
Maximum discharge current | 50A
|
Display screen | No |
Communication support | No |
What is the basic equalization charging method of the lithium
battery pack protection board?
1. Attach a parallel equalization circuit to each single battery of
the lithium-ion battery pack to achieve the purpose of shunt. In
this mode, when a battery is first fully charged, the equalizer
prevents it from overcharging and converts excess energy into heat
to continue charging the unfilled battery. This method is simple,
but it will bring energy loss, and it is not suitable for fast
charging systems.
2. Before charging, each cell is discharged to the same level
through the same load one by one, and then the constant current
charge is carried out to ensure a more accurate equilibrium state
between each cell. However, for the battery pack, due to the
physical differences between individuals, it is difficult to
achieve the ideal effect of complete consistency after the deep
discharge of each cell. Even if the same effect is achieved after
discharge, new imbalances will appear during charging.
3. Detect and charge the single battery in the lithium-ion battery
pack on time, sequencing and separately. When charging the
lithium-ion battery pack, it can ensure that each lithium-ion
battery in the battery pack will not be overcharged or
over-discharged, so that each battery in the lithium-ion battery
pack is in a normal working state.
4. Using the time-sharing principle, through the control and
switching of the switch assembly, the additional current flows into
the battery with relatively low voltage to achieve the purpose of
balanced charging. This method is more efficient, but the control
is more complicated.
5. Take the voltage parameters of each battery as the equalization
object, so that the voltage of each battery is consistent. In
equalizing charging, the capacitor is alternately connected to two
adjacent batteries through a control switch, accepts the charge of
the high-voltage battery, and then discharges to the low-voltage
battery until the voltage of the two batteries tends to be the
same. This balancing method solves the problem of unbalanced
battery pack voltage, but this method is mainly used in the
occasion of a small number of cells.
