Battery Energy Storage System LiFePO4 48V with RS485 communication
1. General Information
This specification defines the performance of rechargeable LiFePO4 battery pack TB4825F-T110A manufactured by SHENZHEN TOPBAND BATTERY CO.,LTD, describes the type, performance, technical characteristics, warning and caution of the battery pack.
2.Specification
No. | Items | Characteristics | |
2.1 | Normal capacity | 25Ah | |
2.2 | Nominal energy | 1.2kWh | |
2.3 | Nominal voltage | 48V(15 series LFP battery) | |
2.4 | Internal resistance @1kHz AC | ≤50mΩ(Current limited function OFF) | |
2.5 | Normal charge voltage | 53.5±0.2V | |
2.6 | Float charge voltage(for Standby use) | 53.5±0.2V | |
2.7 | Allowed MAX charge current | 25A(Current limited function OFF) | |
2.8 | Charge limited current | 5A(Current limited function ON) | |
2.9 | Recommended charge current | ≤12.5A | |
2.10 | Allowed MAX discharge current | 25A | |
2.11 | End of discharge voltage | 42V(Can be set through CAN communication) | |
2.12 | Pulse discharge current | / | |
2.13 | Dimension(Without handles and connectors) | Length 410±3mm | |
Width 210±3mm | |||
Height 160±3mm | |||
2.14 | Weight | About: 14.6Kg | |
2.15 | Operation temperature | Charge | 0~45℃ |
Discharge | -20~60℃ | ||
2.16 |
Self-discharge rate (Sleep mode) |
Residual capacity | ≤3%/Month; ≤20%/ year |
2.17 | Storage environment | ≤1month | -20~+60℃,5~85%RH |
≥1month | -10~+45℃,5~85%RH | ||
Recommend environment | 15~35℃,5~85%RH |
3. BMS function:
Item | Content | Criterion |
Over charge | Over-charge protection 1 for each cell | 3.65±0.03V, Cutoff, but no alarm |
Over-charge warning for each cell | 3.70±0.03V, | |
Over-charge protection 2 for each cell | 3.75±0.03V,Cutoff and output alarm | |
Over-charge release for each cell | 3.50±0.05V | |
Over-charge warning for pack | 54.75±0.03V | |
Over-charge protection for pack | 56.25±0.03V | |
Over-charge release for pack | 51±0.05V | |
Over-charge release method | Under the release voltage or Discharge | |
Over discharge | Over-discharge warning for each cell | 2.80±0.05V |
Over-discharge protection each cell | 2.50±0.05V | |
Over-discharge release for each cell | 3.00±0.10V | |
Over-discharge warning for pack | (LVD+2)±0.05V | |
Over-discharge protection for pack (Limited Voltage of Discharge) |
42±0.05V (Can be set through CAN communication) |
|
Over-discharge release for pack | (LVD+3)±0.05V | |
Over-discharge release method | Over the release Voltage or Charging | |
Over current | Charge over current warning | 27±2A |
Charge over current protection | 30A±2A,delay time 5s | |
Charge over current release | Discharge or auto release after 1min | |
Discharge over current warning1 | 27±2A | |
Discharge over current protection1 | 30A±2A,delay time 5s | |
Discharge over current protection2 | 75A±3A,delay time 500ms | |
Discharge over current release | Charge or auto release after 1min | |
Cell deviation | Cell deviation warning & protection | 500±50mV |
Cell deviation release | 300±50mV | |
Temperature | Charge over temperature protection | Warning@63±3℃ |
Protect@65±3℃ | ||
Release@60±3℃; | ||
Charge under temperature protection | Warning@-2±3℃ | |
Protect@-5±3℃ | ||
Release@0±3℃ | ||
Discharge over temperature protection | Warning@68±3℃ | |
Protect@70±3℃ | ||
Release@65±3℃; | ||
Discharge under temperature protection | Warning@-17±3℃,just show in BMS upper computer, don’t show in CAN communication. | |
Protect@-20±3℃; ,just show in BMS upper computer, don’t show in CAN communication. | ||
Release@-15±3℃; | ||
Pre-charge function |
Available, Support load within 10mF capacity; |
|
Short circuit protection | Available | |
Charge current limit function | 5A, factory set to continuous ON; | |
Battery warming at charging(current ≥0.5A) | Start @5℃ | |
Stop @12℃ | ||
Warming power: 60W; |
4. Storage
Proper environment and timely charging are need to be prepared for the battery. Battery should be stayed in the warehouse 15℃~35℃ where is dry, clean, shade, and well-ventilated.
The battery modules must be charged to 50% (charging status upon delivery) when stored.
Store the battery modules for no longer than 6 months.
Deep-discharge could damage or battery modules. Therefore, the battery must be timely charged (less than 15days) after over-discharged.
Keep the batteries against dropping, turning over and seriously stacking.
Store the battery away from child and pets contact.
5. Transport
Lithium-ion batteries are hazardous goods. Therefore the following points must be observed when transporting the battery modules:
Observe the general transport regulations based on the mode of transport as well as all legal regulations.
No fall down, no pile up over 5 layers and keep face up.
Check the battery immediately after transport the battery.
If user finds shell deformation of the battery pack, don’t use it and contact us.