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Shenzhen Topband New Energy Co.,Ltd
A professional manufacturer of LiFePO4 battery / lithium iron phosphate, decicated to designing, researching, manufacturing, and exporting LiFePO4 batteries( cell & pack & energy storage system) to
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Lithium Iron Phosphate Rechargeable Lifepo4 Battery 24v 50ah High Energy Density

Shenzhen Topband New Energy Co.,Ltd
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Shenzhen Topband New Energy Co.,Ltd
Country/Region: China
Tel: 86-755-27651888-8008
Contact Person:
Mr Jerry Yang

Lithium Iron Phosphate Rechargeable Lifepo4 Battery 24v 50ah High Energy Density

Brand Name : Topband
Model Number : TB2450F-M110A
Certification : CE, MSDS
Place of Origin : China
MOQ : 50pcs
Price : Negotiable
Payment Terms : L/C, T/T
Supply Ability : 450Mwh/year
Delivery Time : 2~4weeks for samples; 4~6weeks for mass production
Packaging Details : standard export carton
Material : Nano LiFePO4
Color : Black, Blue, Green
Type : Lithium Iron Phosphate
Charge Voltage : 29.2V
Charge Current : ≤50A
Discharge current : ≤50A
Peak discharge current : 130A(3S)
Cut-off voltage : 20V
Cycle life : 2000cycles @100% DOD
Operate temperature : -20°C~60°C
Dimension : 318*165*215mm
Weight : 12.1kg
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Lithium Iron Phosphate Rechargeable Lifepo4 Battery 24v 50ah High Energy Density

  • long life & deep cycle( over 2000cycles @ 100%DOD)
  • with built-in PCM/BMS protection
  • rapid charge/discharge performance
  • safe pressure valve design ( no explosion, no fire)
  • high energy density
  • low self-discharge( <3% per month,<15% per year)
  • 1/3 weight & 1/2 volume of lead acid battery
  • eco-friendly
  • high consistency
  • no memory effect
  • easily replace lead acid battery
  • patent Bluetooth connection feature optional, enable IOS & Android app to monitor instant battery status(SOC, voltage, current, remain AH, temp., life cycle, error, contacts).

1. General Information

This specification defines the performance of rechargeable LiFePO4 battery pack TB2450F-M110A manufactured by SHENZHEN TOPBAND NEW ENERGY CO.,LTD, describes the type, performance, technical characteristics, warning and caution of the battery pack.


2. Specification

NOItemsDescription
Normal Specification
1Nominal Voltage25.6V
2Normal Capacity50Ah
3Internal Resistance≤40mΩ
Standard Charge
4Battery operation temperature range @charging0~45℃
5Normal charge voltage29.2±0.2V
6Recommended float charge voltage(for Standby use)27.6±0.2V
7Allowed constant charge current50A@Battery initial Temp 25±5℃
8Recommended charge current≤25A
Standard Discharge
9Battery operation temperature range @discharging-20~60℃
10Output voltage range16.0~29.2V
11Allowed constant discharge current50A withstand 30min @Battery initial Temp 25±5℃
12Pulse discharge current130A withstand 3s
13Discharge cut-off voltage16.0V
Mechanical Characteristics
14DimensionLength 318±2mm
Width 165±2mm
Height 215±2mm
15WeightApprox. 12.1Kg
Storage
16Storage Temperature & Humidity RangeShort: within one month-20~35℃, 45~75%RH
Long term: above one month-10~30℃, 45~75%RH
17Self-discharge rateResidual capacity≤3% per month; ≤15% per year
Reversible capacity≤1.5%per month; ≤8% per year

3. Electrical Characteristics & Test Condition.

@Ambient Temperature 25±5℃ & Humidity 45%~75%.


NOItemsCriterionCondition
1Internal Impedance≤40mΩTest the internal resistance of 50% SOC battery pack with 1 kHz AC internal resistance test instrument.
2Nominal Capacity≥50AhRest for 1 hour after fully charged, then discharge with 0.33C current until the battery reaches the discharge cutoff voltage. Repeat above process for three times, if the discharge time is not less than 180 minutes, you can stop and define the Discharging current*time value (Ah) as battery capacity.
3Short circuit protection/Not allowed.
4MAX charge Current50ACharging with this current for more than 0.5h and the added temperature of battery pack less than 20℃.
5MAX discharge Current50ADischarging with this current for more than 0.5h and the added temperature of battery pack less than 35℃.
6

Cycle life (DOD%100)

≥2000cycleDischarge with the current of 0.5C until it can’t discharge, and then rest it for 1h. Charge the battery following CC(0.33C)/CV(14.6V) mode to full capacity, and then rest it for 1h. Repeat above process until full charged capacity is no more than 80% of normal value. Accumulated times is defined as cycle life.
7

Discharge Temperature

Characteristics

-20℃70%At 25±5℃ discharge the battery with the current of 0.33C to the cut-off voltage and record charge capacity. Store the battery at various temperatures for 2h and discharge the battery with 0.33C to the cut-off voltage.
0℃80%
25℃100%
55℃95%
8Charge Retention abilityremain capacity≥90%Charge the battery to full capacity and store it for 28days, and then discharge it with 0.33C to the cut-off voltage.

4. Circuit Protection

The batteries are supplied with a LiFePO4 Battery Management System (BMS) that can monitor and optimized each single prismatic cell during charge & discharge, to protect the battery pack overcharge, over discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.

Test itemContentCriterion
Over chargeOver-charge protection for each cell3.80±0.03V
Over-charge release for each cell3.60±0.05V
Over-charge release methodUnder the release voltage
Over dischargeOver-discharge protection for each cell2.00±0.05V
Over-discharge release for each cell2.30±0.05V
Over-discharge release methodRelease after charging
Over currentDischarge over current protection150±20A
Protection delay time10~40ms
Over current release methodAfter cutoff the load

Battery

temperature

Over temperature protection65±5℃
Over temperature release50±5℃

5. Dimensional Drawing


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