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CE Certified Medical Equipment Batteries 24V 50Ah No Memory Effect
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Brand Name:Topband
Model Number:TB2450F-M110A
Certification:CE, MSDS, ISO9001, ISO14001
Supply Ability:450Mwh/year
Delivery Time:2~4weeks for samples; 4~6weeks for mass production
Price:Negotiable
Payment Terms:L/C, T/T
Company Data
Active Member
Contact Person
Jerry Yang
Business Type:
86-755-27651888-3215
Business Type:
Manufacturer Exporter
Officials:
Topband Industry Park,Tangtou Town,Bao'an District,Sheznzhen,China
Quality:
Quality Certifitation Available
Product Details
Company Profile
Product Details
CE Certified Medical Equipment Batteries 24V 50Ah LiFePO4 , Nano Lithium Iron Phosphate
- long life cycle( 2000cycles @ 100%DOD)
- with built-in PCM/BMS protection
- super quick charge/discharge performance
- safe pressure valve design ( no explosion, no fire)
- high energy density
- low self-discharge( <3% per month)
- 1/3 weight & 1/2 volume of lead acid battery
- eco-friendly
- high consistency
- no memory effect
- easily replace lead acid battery
1. General Information
This specification defines the performance of rechargeable LiFePO4 battery pack TB2450F-M110A 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 | 25.6V | |
| 2 | Normal Capacity | 50Ah | |
| 3 | Internal Resistance | ≤40mΩ | |
| Standard Charge | |||
| 4 | Battery operation temperature range @charging | 0~45℃ | |
| 5 | Normal charge voltage | 29.2±0.2V | |
| 6 | Recommended float charge voltage(for Standby use) | 27.6±0.2V | |
| 7 | Allowed constant charge current | 50A@Battery initial Temp 25±5℃ | |
| 8 | Recommended charge current | ≤25A | |
| Standard Discharge | |||
| 9 | Battery operation temperature range @discharging | -20~60℃ | |
| 10 | Output voltage range | 16.0~29.2V | |
| 11 | Allowed constant discharge current | 50A withstand 30min @Battery initial Temp 25±5℃ | |
| 12 | Pulse discharge current | 130A withstand 3s | |
| 13 | Discharge cut-off voltage | 16.0V | |
| Mechanical Characteristics | |||
| 14 | Dimension | Length 318±2mm | |
| Width 165±2mm | |||
| Height 215±2mm | |||
| 15 | Weight | Approx. 12.1Kg | |
| 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.
@Ambient Temperature 25±5℃ & Humidity 45%~75%.
| NO | Items | Criterion | Condition | |
| 1 | Internal Impedance | ≤40mΩ | Test the internal resistance of 50% SOC battery pack with 1 kHz AC internal resistance test instrument. | |
| 2 | Nominal 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) | ≥2000cycle | 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 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% | |||
| 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 | 3.80±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 | 2.00±0.05V |
| Over-discharge release for each cell | 2.30±0.05V | |
| Over-discharge release method | Release after charging | |
| Over current | Discharge over current protection | 150±20A |
| Protection delay time | 10~40ms | |
| Over current release method | After cutoff the load | |
Battery temperature | Over temperature protection | 65±5℃ |
| Over temperature release | 50±5℃ |
5. Dimensional Drawing
Company Profile
Shenzhen Topband Battery Co., Ltd
Shenzhen Topband Co., Ltd. was registered in so-called “China Silicon Valley”, Shenzhen Hi-tech Industrial Park in 1996, and got listed in Shenzhen Stock Exchange ( the stock code as 002139) in 2007.
After years of rapid development, now Topband takes lithium battery as the core technology and has become one of the leading suppliers of lithium battery solutions in China, focusing on nano lithium iron phosphate/ LiFePO4 technology for EV, RV/ caravan, marine, motorcycle, golf cart / trolly, UPS, solar storage, medical, floor scrubber, industrial, commercial use, etc.
Smart Bluetooth & WIFI connection is is our patent
feature, equipped with IOS & Android app to
monitor the instant battery status (SOC, OCV, charge
current, ambient temperature, and errors included).
Topband has more than 5000 staffs, covers an area of 100,000 square meters. And large production plants are mainly located at Shenzhen and Huizhou
Our R&D team of over 300 professionals, in cooperation with Tsinghua Research Institute and Harbin Industrial University have laid a firm foundation of our leading technology.
We have got the certificates of ISO9001, ISO14001, OHSAS18001, TS16949 and UL, CE, CB, UN38.3, TUV, etc.
Topband is a Hi-tech enterprise. Since the company established, with innovation, we have committed ourselves to making people’s lives more comfortable and high-efficient. We and our companions are working hard at making technology progress to let people enjoy the changes of new technology.
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