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LiFePO4 Telecom Battery Long Life Deep Cycle 48V 40Ah Capacity 3U Rack With RS485

Categories Telecom Battery
Brand Name: Topband/OEM/ODM
Model Number: TB4840F-T110D
Certification: MSDS, UN38.3
Place of Origin: Guangdong, China
MOQ: 10 Pcs
Price: Negotiable
Payment Terms: L/C, T/T
Supply Ability: 450 Mwh / Year
Delivery Time: 2~3 weeks for sample, 4~6 weeks for bulk order after payment
Packaging Details: standard export carton
Name: LiFePO4 Telecom Long Life Deep Cycle Battery 48V 40Ah 3U Rack With RS485
Capacity: 48V 40AH
Battery: LiFePO4
Dimension: 482*130*445mm (±2mm)
Weight: 27KG (59.5Ib)
Feature: Supply power for telecom communication base centre
Internal Impedance: ≤50mΩ
Charge/Discharge Current: 50A
  • Product Details
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LiFePO4 Telecom Battery Long Life Deep Cycle 48V 40Ah Capacity 3U Rack With RS485

LiFePO4 Telecom Long Life Deep Cycle Battery 48V 40Ah 3U Rack With RS485

About us

Shenzhen Topband Battery Co., Ltd. is an expert manufacturing LiFePO4 battery, who founded in 1996 and listed in Shenzhen of China in 2007. There are over 600 R & D engineers and about 6,000 experienced workers, occupies 100,000 square meters Topband industrial park. We can provide One-Stop Solution of renewable energy, from cell, BMS/PCM to battery pack assembling.

Our culture is respect and agree with the difference culture and habit from all over the world, make customer success, developing with our customers, continue to self-improvement, commitment to excellence.

Our mission is creating valuable products to win the market for customers, our vision is to a respected intelligent Eco-friendly energy provider.

1. General Information

This specification defines the performance of LiFePO4 Telecom Long Life Deep Cycle Battery 48V 40Ah 3U Rack With RS485 TB4840F-T110D manufactured by TOPBAND, describes the type, performance, technical characteristics, warning and caution of the battery pack.

2. Battery Specification(@ 25±5℃ (68℉~86℉)

2.1Normal capacity40Ah
2.2Nominal energy2.048KWh
2.3Nominal voltage51.2V (LFP-16S)
2.4Internal resistance≤50mΩ @1kHz AC
2.5Normal charge voltage58.4±0.3V
2.6Float charge voltage(for Standby use)55.2±0.3V
2.7Allowed Max. charge current50A
2.8Recommend charge current≤25A
2.9Allowed Max. discharge current50A
2.10Peak discharge current170A (3s)


Cut off discharge voltage36.8V
2.12DimensionLength 482.0±2mm
Width 130±2mm
Depth 445±2mm
2.13WeightApprox. 27KG (59.5Ib)
2.14Working temperatureCharge0~45℃ (32℉~113℉)
Discharge-20~60℃ (-4℉~140℉)
2.15Self-discharge rateResidual capacity≤3%/Month; ≤10%/ year
Recover capacity≤1.5%/Month; ≤8%/ year
2.16Storage environment≤1month-20~35℃ (-4℉~95℉), 45~75%RH
≥3month-10~35℃ (14℉~95℉), 45~75%RH
Recommend environment15~30℃ (59℉~86℉), 45~75%RH


1) Based on the character of cell, proper environment for transportation of LiFePO4 battery pack need to be created to protect the battery.

2) Battery should be storaged in the warehouse 15℃~35℃ (59℉~95℉), where dry, clean, shade, and well-ventilated circumstance.

3) The battery should be stored in 50% SOC during transportation.

4) The battery need to be charged every 6 months if out of use

5) Keep the battery against dropping, turning over and serious stacking during loading.

3. Product Performance

Testing Conditions: Ambient Temperature: 25±5℃ (68℉~86℉); Huminity:45%~75%.

Normal charge:Charge battery under CC(0.33C)/CV(58.4V) mode until over charge protection or the charge current reduce to 0.05C, and then rest for 1h.

3.1Normal Capacity40AhAfter Normal charge, discharge @0.33C current to the end of discharge voltage.
3.2Internal Impedance≤50mΩ@50% SOC @1kHz AC internal resistance test instrument.
3.3Cycle life @DOD100%≥2000 cyclesAfter Normal charge,discharge @0.33C current to the end of discharge voltage. Repeat above process until discharge capacity reduce to 80% of initial value.


Discharge temperature


-20℃ (-4)≥70%

Capacity @specified temperature

Capacity @ 25℃ (77)

0℃ (32)≥80%
25℃ (77)≥100%
55℃ (131)≥95%
3.5Capacity retention rate

remain capacity


After normal charge, store the battery @25±5℃ (68℉~86℉) for 28days, then discharge capacity @0.33C,the retention capacity accord with criterion.


  • Replacement lead-acid battery ( AGM battery / deep cycle battery / gel battery )
  • RV, Solar Energy Storage ect.
  • High energy density
  • About 1/3 the weight of lead-acid batteries.
  • Environment friendly, no toxic
  • No memory effect, 2,000 times cycle-life (100% DOD)
  • Safe and reliable, no explosion when piercing, no fire when over voltage
  • Low self discharge
  • High power, maximize discharge current up to 5C

4. Basic 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.

4.1Over chargeOver-charge warning for each cell3.60±0.03V
Over-charge protection for each cell3.70±0.03V
Over-charge release for each cell3.38±0.05V
Over-charge release methodUnder the release voltage
4.2Over dischargeOver-discharge warning for each cell2.80±0.05V
Over-discharge protection each cell2.50±0.05V
Over-discharge release for each cell2.90±0.10V
Over-discharge release methodCharging
4.3Short circuitAuto cutoff load when short circuitConnect the positive and negative of this battery pack through a lead with 0.1Ω resistance.
4.4Over currentCharge over current warning55±3A
Charge over current protection60A±3A
Charge over current releaseDischarge or auto release after 1min
Discharge over current warning55±3A
Discharge over current protection60A±3A
Discharge over current releaseCharge or auto release after 1min
Short circuit protectionAvailable
4.5TemperatureCharge over temperature protectionProtect@55±3℃; Release@50±3℃;
Charge under temperature protectionProtect@0±3℃; Release@5±3℃
Discharge over temperature protectionProtect@65±3℃; Release@60±3℃;
Discharge under temperature protectionProtect@-20±3℃; Release@-15±3℃;

5. Other Products

6. Applications

Golf Trolley, Solar Power System, UPS, Telecommunication Base Station, Marine, Energy Storge System, Computer Data Room, Outdoor Portable Power Supply, RV camper / Caravan, Railway System, ect.

2000 Times Cycle - Life Lithium Ion Battery For Telecom Application , No Explosion TB48100F-T105A

7. Warning & Tips

Please read and follow the specification and caution remarks on battery surface before use the battery. Improper use may cause heat, fire, rupture, damage or capacity deterioration of the battery. Shenzhen Topband Battery Co., Ltd. Describes is not responsible for any accidents caused by the usage without following our specification.

  • The battery must be far away from hot source, high voltage, and avoid to be exposed in sunshine for long time.
  • Never throw the battery into water.
  • Do not put the battery in a charger or equipment with wrong terminals connected.
  • Never connect the positive and negative of battery with metal.
  • Avoid excessive physical shock or vibration. don't hit, fall, stamp on the battery
  • Without the permission of the manufacturer and guidance, forbidden to remove or to assemble the battery
  • Do not use the battery mixed with other different manufacturer, type, or model batteries.
  • Keep the battery against high temperature. Otherwise it will cause battery heat, get into fire or lose some function and reduce the life.
  • When battery run out of power, please charge your battery timely (≤15 days).
  • Please use the matched or suggested charger for this battery.
  • If battery emit peculiar smell, heating, distortion or appear any abnormity during working or storage, please stop using and take it out from device.
  • If the battery leaks and get into the eyes or skin, do not wipe, instead, rinse it with clean water and see doctor immediately.
  • Please far away from children or pets.
  • Do not put disuse battery into a fire or water.
  • It is strictly prohibited any series between the battery packs. Any requirements on serials connection, please contact TOPBAND for details.

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