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48V 50AH Deep Cycle Lithium Battery , Rechargeable Lithium Batteries

Good quality Deep Cycle Lithium Battery for sales
Good quality Deep Cycle Lithium Battery for sales
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48V 50AH Deep Cycle Lithium Battery , Rechargeable Lithium Batteries

China 48V 50AH Deep Cycle Lithium Battery , Rechargeable Lithium Batteries supplier

Large Image :  48V 50AH Deep Cycle Lithium Battery , Rechargeable Lithium Batteries

Product Details:

Place of Origin: China
Brand Name: Topband
Certification: MSDS, CB, UL, UN38.3
Model Number: TB4850F-S110A_00

Payment & Shipping Terms:

Minimum Order Quantity: 50pcs
Price: Negotiable
Packaging Details: standard export carton
Delivery Time: 2~4weeks for samples; 4~6weeks for mass production
Payment Terms: L/C, T/T
Supply Ability: 450Mwh/year
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Detailed Product Description
Nominal Voltage: 48V Typical Capacity: 50Ah
Nominal Charge Voltage: 58.4V Discharge Cut-off Voltage: 40V
Max Charge: 50A Max Discharge: 50A
Peak Discharge: 150A Work Temperature: -20℃ - 60℃ ( -4℉ - 140℉ )
Cycles Life: ≥2000 Weight: 25kg
Dimension: 485*170*245 Mm Material: Nano LiFePO4

 

48V 50AH Deep Cycle Lithium Battery , Rechargeable Lithium Batteries

1. General Information

 

This specification defines the performance of rechargeable LiFePO4 battery pack TB4850F-S110A_00

manufactured by Shenzhen Topband Battery Co., Ltd, describes the type, performance, technical characteristics, warning and caution of the battery pack.

 

2. Specification(@Battery initial Temp25±5℃)

NO. Items Criteria Remarks
2.1 Rated Capacity 50Ah  
Minimum Capacity 47.5Ah  
2.2 Energy 2.56KWh  
2.3 Nominal Voltage 51.2V  
2.4 Outgoing Voltage ≥51.2V  
2.5 Internal resistance ≤80mΩ  
2.6 Series parallel application Series connection is prohibited  
2.7 Limited charge voltage 58.4±0.2V  
2.8 Floating charge voltage 55.2±0.2V  
2.9 Standard charge current 35A  
2.10 Maximum charge current ≤50A  
2.11 Standard discharge current 40A  
2.12 Maximum discharge current ≤50A  
2.13 Pulse discharge current Withstand the 150A/3s  
2.14 Discharge cut-off voltage 36.8V  

 

2.15

Dimension length 483.4±3mm  
Width 170±3mm  
Height 241±3mm  
2.16 Weight Approx: 24.2±0.5Kg  

 

2.17

Operating Temperature Charging:0~45℃
Discharging:-20~60℃
Recommended operating temperature:15℃~35℃
2.18 Self-discharge rate Residual capacity:≤3%/month;≤15%/years
Reversible capacity:≤1.5%/month;≤8%/years
2.19 Storage Temperature & Humidity Range Less than 1 month:-20℃~35℃,45%RH~75%RH
Less than 3 months:-10℃~35℃,45%RH~75%RH

Recommended storage environment:

15℃~35℃,45%RH~75%RH

Long time storage:

If the battery need be stored for a long time, the voltage should be 26.4V(50%SOC), and stored in the condition as storage proposal. It need at least one charge & discharge cycle every six months

 

3. Test Conditions

3.1 Standard Test Conditions

3.1.1 Unless otherwise specified, all performance tests is required conducted at temperature 25℃±2℃, Humidity less than 45%~75%RH.

3.1.3 Unless otherwise specified, the tested product is required unused within two month after outgoing.

3.2 Standard Charge Mode

"Standard Charge" means at 25±2℃ charge to limit voltage with 0.33C constant current, then charge with constant voltage until current less than 0.02ItA.

3.3 Quick Charge Mode

" Quick Charge" means at 25±2℃ charge to limit voltage with 0.5 C constant current, then charge with constant voltage until current less than 0.02ItA.

3.4 Standard Discharge Mode

"Standard Discharge" means at 25±2℃ discharge to the cut-off voltage with 0.33C current.

3.5 Quick Discharge Mode

"Quick Discharge" means discharge to the cut-off voltage with 0.5C current.

 

4. Product Performance

NO. Items Criteria Testing method
4.1 Rated Capacity 50Ah Rest 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 120 minutes, you can stop and define the Discharging current*time value (Ah) as battery capacity.
4.2 Minimum Capacity 47.5Ah
4.3 Internal resistance ≤80mΩ 50% battery SOC state frequency of 1 KHZ ac resistance tester
4.4

Cycle life

(DOD100%)

≥2000cycle Discharge with the current of 0.33C 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.
4.5

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%
4.6 Charge Retention ability

Residual

capacity≥80%

Charge the battery to full capacity and store it for 28days, and then discharge it with 0.33C to the cut-off voltage.
Recovery capacity≥90%
 

 

5. Protective circuit specification

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.

NO. Items Content Specification
5.1 Over charge Over-charge protection for each cell 3.85±0.03V
Over-charge release for each cell 3.65±0.05V
Over-charge release method Under the release voltage
5.2 Over discharge Over-discharge protection for each cell 2.3±0.08V
Over-discharge release for each cell 2.5±0.08V
Over-discharge release method Charge to recovery
5.3 Over current Discharge over current protection 170~230A
Protection delay time 10~40ms
Over current release method After cutoff the load
5.4 Short circuit Do not short-circuit the electrodes Designed For 230A~500A /500us
5.5 Battery temperature Charge over temperature Protection @65±5℃
Release @50±5℃
Discharge over temperature Protection @65±5℃
Release @50±5℃
 

6. Dimensional Drawing

48V 50AH Deep Cycle Lithium Battery , Rechargeable Lithium Batteries

Contact Details
Shenzhen Topband Battery Co., Ltd

Contact Person: Jerry Yang

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