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Shenzhen Topband Battery Co., Ltd

Good quality Deep Cycle Lithium Battery for sales
Good quality Deep Cycle Lithium Battery for sales
We have cooperated with Topband for several years, we think Topband is a reliable supplier with quality products, and professional technical support!

—— Stephan Moberg

In energy storage system project, Topband team provides expertise support and excellent product at reasonable price. Much appreciated for their effort

—— Christin Gartner

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Large 48V 50AH Deep Cycle Rv Battery Lithium With MSDS Approved

China Large 48V 50AH Deep Cycle Rv Battery Lithium With MSDS  Approved supplier

Large Image :  Large 48V 50AH Deep Cycle Rv Battery Lithium With MSDS Approved

Product Details:

Place of Origin: China
Brand Name: Topband
Certification: MSDS,CE
Model Number: TB4850F-T110C

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 Current: 50A Max Continuous Discharge Current: 50A
Peak Discharge Current: 100A Work Temperature: -20℃ - 60℃ ( -4℉ - 140℉ )
Cycles Life@ 100% DOD: ≥2000 Weight: 30.5kg
Dimension: 425*482*133 Mm Material: Nano LiFePO4

Large 48V 50AH Deep Cycle Rv Battery Lithium With MSDS  Approved

 

 1. General Information

This specification defines the performance of rechargeable LiFePO4 battery pack TB4850F-T110C manufactured by Shenzhen Topband Battery Co., Ltd, describes the type, performance, technical characteristics, warning and caution of the battery pack.

 

  2. Specification

NO Items Description
Normal Specification
1 Nominal Voltage 51.2V
2 Normal Capacity 50Ah
3 Internal Resistance ≤60mΩ
Standard Charge
4 Battery operation temperature range @charging 0~45℃
5 Normal charge voltage 58.4±0.2V
6 Recommended float charge voltage(for Standby use) 55.2±0.2V
7 Recommended charge current ≤25A @Battery initial Temp 25±5℃
8 Allowed MAX charge current 50A @Battery initial Temp 25±5℃
Standard Discharge
9 Battery operation temperature range @discharging -20~60℃
10 Output Voltage Range 40.0~58.4V
11 Allowed discharge current 50A withstand 30min @Battery initial Temp 25±5℃
12 Pulse discharge current 100A withstand 3s
13 Discharge Cut-off voltage 32.0V
Mechanical Characteristics
14 Dimension Length 425±3mm
Width 482±3mm
Height 133.2±3mm
15 Weight Approx. 30.5±0.2 Kg
Storage
16 Storage Temperature & Humidity Range Short: within one month -20~35℃, 45~75%RH
Long term: above one month -10~30℃, 45~75%RH
17 Self-discharge rate Residual capacity ≤3% per month; ≤15% per year
Reversible capacity ≤1.5%per month; ≤8% per year

 

3. Electrical Characteristics & Test Condition

Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.

 

NO Items Criterion Condition
1 Internal Impedance ≤60mΩ Test the internal resistance of 50% SOC battery pack with 1 kHz AC internal resistance test instrument.
2 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 180 minutes, you can stop and define the Discharging current*time value (Ah) as battery capacity.
3 Short circuit protection / Not allowed.
4 MAX charge Current 50A Charging with this current for more than 0.5h and the added temperature of battery pack less than 20℃.
5 MAX discharge Current 50A Discharging with this current for more than 0.5h and the added temperature of battery pack less than 35℃.
6

 

 

Cycle life (DOD%100)

≥1200cycle Discharge 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. Store the battery at various temperatures for 2h and discharge the battery with 0.33C to the cut-off voltage. Record the ratio between discharging & charging capacity.
0℃ ≥80%
25℃ 100%
55℃ ≥95%
8 Charge Retention ability remain 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 item Content Criterion
Over charge Over-charge protection for each cell 3.90±0.03V
Over-charge release for each cell 3.60±0.05V
Over-charge release method Under the release voltage
Over discharge Over-discharge protection for each cell 2.30±0.05V
Over-discharge release for each cell 2.80±0.05V
Over-discharge release method Charging
Over current Discharge over current protection 400±50A
Protection delay time 50~200ms
Over current release method Release after 30s.

Over & Lower

Temperature

Battery charge/discharge over temperature Protection @65±5℃
Release @55±5℃
Battery charge lower temperature Protection @-5±5℃
Release @5±0℃

 

5. Dimensional Drawing

Large 48V 50AH Deep Cycle Rv Battery Lithium With MSDS  Approved

Contact Details
Shenzhen Topband Battery Co., Ltd

Contact Person: Jerry Yang

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