Datasheet
Lithium-ion Battery Series
DOC NO：SDJG/C- LI-PS201
REV ： R1.0
PAGE： 9 of 9
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3 、 Voltage protection point value (for single cell ) of protection board or BMS, and selecting
principle of protection board.
4、Selecting principles of chargers
Selecting principles of chargers
(1) Voltage should be regulated by the safest voltage of chargeable cell * n (make the Lithium iron
phosphate as 3.6 V and Ni- Co- Mn as 4.2 V);
(2) Current should be limited by the safe current of chargeable cell, and the customers’ specific
requirements also should be considered.
(3) If above 120W, chargers with aluminium alloy cooling fin or cooling fan will be suggested.
(4) If under 60W, chargers with plastic shell will be suggested.
5、 In the process of packs structure design and production, some measures and skills could be
handled to avoid battery short circuit.
(1) To strengthen the positive insulation treatment of the monomer batteries, with barley paper or
other high temperature resistant material;
(2) Battery in the case of size allowed, should try to use batteries of the isolation.
(3) Battery when working current is larger and can't use bracket, should strengthen the insulation of
the batteries shell, for example, using paper sleeve, PVC casing.
(4) The power line shall not directly contact with the surface of the batteries, avoid cross; Must cross
the line and the line between the bracket with high temperature tape or barley paper.
(5) Power line is not connected to the nickel spot welding surface as far as possible, cannot be avoided,
the power line between nickel and high temperature insulation tape to stick a highland barley paper.
(6) The reasonable design of nickel welding way, minimize nickel piece of calorific value.
Over-charged
Protection Voltage
Over-discharged
Protection Voltage
The protection voltage
point for monomer should
be selected also based on
the safety voltage point of
cell and protection voltage
point of IC.
Lithium Iron
Phosphate
3.6-3.9
2.0-2.5
Ni-Co- Mn
4.05-4.25
2.5-3.0
Selecting principles of protection board: based on the safety needs of the cell and
customers’ requirements. To select the suitable protection board according to the size of
battery packs.