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12.8V 50Ah LiFePO4 Battery
HelithTech
Product Description
Hertz 1250 Lithium Battery Specifications:
Model: Hertz 1250
Nominal Voltage: 12.8V
Nominal Capacity: 50AH
Nominal Energy: 640WH
Battery Cell Type: Prismatic 50Ah
Configuration: 4S1P
Max. Continuous Charge Current: 50A
Max. Continuous Discharge Current: 50A
DC Resistance: ≤10mΩ
Charging Cut-off Voltage: 14.6V
Discharging Cut-off Voltage: 10V
Operate Charge Temperature Range: 0~55℃
Operate Discharge Temperature Range: -20~60℃
Operate Storage Temperature Range: -20~45℃
Dimensions: 229x138x208mm
Weight: 7kg
Terminal Type: Screw terminal
Cover Sealing Type: Screw / gel sealing optional
Waterproof: IP65
Cycle Life: >6000 Cycles (80% DOD)
LCD Screen Display: Optional (Shows voltage V, Power %)
Bluetooth: Optional (Bluetooth with mobile APP)
Series and Parallels Function: Available for creating series and parallel configurations to obtain 24V, 36V, 48V.
Battery Cell
The biggest advantage of prismatic cells is its thin profile, lightweight, and the effective use of space. Due to the rectangle shape of these cells, it can facilitate better layering and increase flexibility in the products. With big capacity, less cell assembled together makes monitoring on each battery cell instead of cell string become possible. Changing defective battery cell is feasible too when there is cell failure.
Item | Parameter | Size |
A | Height | 172 mm |
B | Width | 132 mm |
C | Length | 194 mm |
D | Weight | 6 kg |
Intelligent factory design, high performance consistency;
Square aluminum shell, high-precision explosion-proof valve, high safety performance;
Low internal resistance, high discharge rate and stable discharge platform;
Long cycle life, the capacity retention ratio exceeds 70% after 4000 cycle @ 0.5C/1C
# | Item | Parameter | Remark | |
1 | Rated Capacity | 50 Ah | Standard discharge（0.2 C5） After standard charge（0.2 C5） | |
2 | Minimal Rated Capacity | 49 Ah | ||
3 | Nominal Voltage | 12.8V | working voltage | |
4 | Discharge cut-off voltage | ≥8V | 10.0V(recommended) | |
5 | Charging cut-off voltage | ≤15.6V | 14.6V (recommended) | |
6 | Standard charge | 0.2C constant current(CC) charge to 14.6V, then constant voltage (CV)14.6V charge till charge current decline to ≤0.05C | Charge time : Approx 6h | |
7 | Standard discharge | Constant current 0.2C Cut-off voltage 10.0V | ||
8 | Maximum Charge Current | 50A | ||
9 | Max Continuous Discharge Current | 50A | ||
| 10 | Peak current | 150A | ||
11 | Operation Conditions | Charge | 0~45℃ | 60±25%R.H. 23 ± 5°C(recommended) |
Discharge | -10~60℃ | |||
12 | Storage Conditions | Less than 1 year : 0~25℃ | 60±25%R.H. at the shipment state | |
Less than 3 months:-10~35℃ | ||||
Precautions
Based on the product specifications of the Hertz 1250 lithium battery, here are the precautions and preventive measures to be taken during usage:
1. Charging and Discharging Parameters: Always operate within the specified charging and discharging current ranges to prevent potential performance degradation or safety issues. The maximum continuous charge and discharge current are 50A.
2. Temperature Control: Maintain operations within the specified temperature range during charging and discharging. Operating beyond the specified temperature range may affect battery performance or pose safety risks.
3. Cycle Life: Despite supporting over 6000 cycles, exercise caution during actual use. Avoid overcharging and over-discharging to extend the battery's lifespan.
4. Waterproof Performance: While the battery has an IP65 waterproof rating, additional waterproof measures should be taken when submerged or exposed to strong water currents to ensure normal battery operation.
5. Bluetooth and LCD Display: If opting for Bluetooth functionality or an LCD display, ensure reasonable use to conserve battery power by enabling these features only when necessary.
6. Weight and Dimensions: During installation and transportation, be mindful of the battery's weight and dimensions. Proper installation and prevention of impacts help avoid damage to the battery.
7. Series and Parallel Connections: If choosing to perform series and parallel operations to obtain different voltage outputs, ensure correct connections and avoid over-discharge or overcharge.
8. Storage Temperature: When not in use, store the battery within the specified temperature range, avoiding prolonged storage in extreme temperature environments.
Carefully read the user manual and safety instructions provided by the manufacturer, and follow their recommendations for the proper use and maintenance of the battery to ensure safety and performance.
