Dongguan Everwin Tech Co., Limited
| Payment Terms | T/T |
| Supply Ability | 100pcs for 25-30 days |
| Delivery Time | 7-12 delivery days |
| Packaging Details | carton box+paper box |
| Max Charge Current | 30A |
| Weight | 32kg |
| Payment | Paypal.TT.Western Union |
| Shipping | DHL EMS UPS TNT FEDEX |
| Casing | Plastic |
| Type | Battery Pack |
| Battery Cell | 32700 |
| Cell | Lithium iron phosphate battery |
| Usage | Solar System |
| Case Color | Black |
| Brand Name | EWT |
| Model Number | LFP 72V 40AH |
| Certification | MSDS |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 100pcs for 25-30 days |
| Delivery Time | 7-12 delivery days | Packaging Details | carton box+paper box |
| Max Charge Current | 30A | Weight | 32kg |
| Payment | Paypal.TT.Western Union | Shipping | DHL EMS UPS TNT FEDEX |
| Casing | Plastic | Type | Battery Pack |
| Battery Cell | 32700 | Cell | Lithium iron phosphate battery |
| Usage | Solar System | Case Color | Black |
| Brand Name | EWT | Model Number | LFP 72V 40AH |
| Certification | MSDS | Place of Origin | China |
| High Light | 72V 40AH Lithium Iron Phosphate Battery ，ATV Lithium Iron Phosphate Battery ，BMS Lithium Iron Phosphate Battery | ||
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.
Company Details
Business Type:
Manufacturer
Year Established:
2009
Total Annual:
25000000-30000000
Employee Number:
250~300
Ecer Certification：
Verified Supplier
Everwin Tech Co., Limited was established in 2009 and is a professional battery manufacturer specializing in reserach design and producing power solutions for all kinds of market . EWT Battery provide ODM, OEM battery solutions for medical, solar lighting, smart metering lo... Everwin Tech Co., Limited was established in 2009 and is a professional battery manufacturer specializing in reserach design and producing power solutions for all kinds of market . EWT Battery provide ODM, OEM battery solutions for medical, solar lighting, smart metering lo...
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