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BMS 2.4kWh 1kHz 48V 50Ah 3U Ups Backup Battery TB4850F-T110

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Shenzhen Topband Battery Co., Ltd

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BMS 2.4kWh 1kHz 48V 50Ah 3U Ups Backup Battery TB4850F-T110

Name: BMS 24kWh 1kHz 48V 50Ah 3U Ups Backup Battery TB4850FT110
Brand: Topband
Price: 1 USD

BMS 2.4kWh 1kHz 48V 50Ah 3U Ups Backup Battery TB4850F-T110 Manufactures

Brand Name : Topband

Model Number : TB4850F-T110

Certification : CE, TUV, UL, UN38.3, etc.

Place of Origin : China

MOQ : 1

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 1GWH/year

Delivery Time : 10-40 days

Packaging Details : Standard Export Package

Nominal Voltage : 48V

Nominal Capacity : 50Ah

Charge voltage : 54.75V

Discharge cut-oﬀ voltage : 37V

Max Charge current : 50A

Discharge current : 50A

BMS : Yes

case size : 3U/19"

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48V 50Ah 3U Telecom Batteries, back up lithium ion battery

1. Specifications:

NO	Items		Characteristics
1.1	Normal capacity		50Ah
1.2	Nominal energy		2.4kWh
1.3	Nominal voltage		48V (LFP-15S)
1.4	Internal resistance		≤50mΩ @1kHz AC
1.5	Normal charge voltage		57.00±0.3V
1.6	Float charge voltage(for Standby use)		51.75±0.3V
1.7	Allowed MAX charge current		25A
1.8	Recommended charge current		25A
1.11	Allowed MAX discharge current		50A
1.12	End of discharge voltage		37.5V
1.13	Dimension		Width 482.6±5 mm(internal 442±5mm)
			Height 133.2±3 mm
			Depth 477±5 mm
1.14	Weight (No accessories)		Approx. 28.0Kg
1.15	Operation temperature	Charge	0～45℃
		Discharge	-20～60℃
1.16	Self-discharge rate	Residual capacity	≤3%/Month; ≤15%/ year
		Recover capacity	≤1.5%/Month; ≤8%/ year
1.17	Storage environment	≤1month	-20～+60℃,5～75%RH
		≥3month	-10～+45℃,5～75%RH
		Recommend environment	15～35℃,5～75%RH

2. Electrical Characteristics & Test Condition
Testing Conditions: Ambient Temperature: 25±5℃; Humidity:45%~75%.
Normal charge:Charge battery under CC(0.33C)/CV(54.8V) mode until over charge protection or the charge current reduce to 0.02C, and then rest for 1h.

Items

Criterion

Condition

2.1

Normal Capacity

50Ah

After Normal charge, discharge @0.5C current to the end of discharge voltage.

2.2

Internal Impedance

≤50mΩ

@50% SOC @1kHz AC internal resistance test instrument.

2.3

Short circuit protection

Auto cutoff load when short circuit

Connect the positive and negative of this battery pack through a lead with 0.1Ω resistance.

2.4

Cycle life @DOD100%

≥2000 cycles

After Normal charge,discharge @0.33C current to the end of discharge voltage. Repeat above process until discharge capacity reduce to 80% of initial value.

2.5

Discharge temperature

characteristic@0.2C

-20℃(6h)

≥60%

the percentage
accord with criterion

Capacity @specified temperature

Capacity @ 25℃

0℃(6h)

≥80%

25℃(4h)

≥100%

55℃(4h)

≥95%

2.6

Capacity retention rate

remain capacity

≥96%

After normal charge, store the battery @25±5℃ for 28days, then discharge capacity @0.2C,the retention capacity accord with criterion.

3. Operation instruction

Charge and discharge voltage: shall not exceed the maximum limit voltage specified in the specification
Charging and discharging temperature: the charging temperature of the battery must be in accordance with the temperature range specified in the specification
Charging sequence: charging by constant current before constant voltage. There is a danger if the battery is charged upside down.

Special note:

A short time of overcharging and over-discharging will not affect the use of the battery, but a long time of over-discharging or overcharging will affect the functional failure of the battery, or the battery is permanently unable to use, serious safety risks, need for a long time floating charge, please use the specification recommended floating charging mode. When the battery is not used for a long time, the self-discharge characteristics of the battery will also lead to over-discharge. In order to prevent the occurrence of over-discharge, the battery should maintain a certain amount of electricity and maintain its voltage at 50% SOC state.

BMS 2.4kWh 1kHz 48V 50Ah 3U Ups Backup Battery TB4850F-T110

Packaging & Shipping

1. Pack in safety industrial package, with IATA shipping standard.
2. For sample or small order: ship by DHL, UPS, FedEx and TNT etc…
3. For large order, ship by AIR or OCEAN.

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BMS 2.4kWh 1kHz 48V 50Ah 3U Ups Backup Battery TB4850F-T110

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