Active Member
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[China]
Address: RM 1302 13/F CHEONG K. BUILDING 84-86 DES VOEUX ROAD CENTRAL HONG KONG
Contact name:
YM POWER TECH LIMITED |
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Quick Detail:
1. With all direction wheels, easy for move
2. High quality grade A primatic aluminum case LiFePO4 cells are used
3. reliable BMS to manage each cell status
4. Communication via RS485
5. Long warranty period of 5 years
Description:
20KWH Solar Lithium Ion Battery Bank, 48V 400AH LiFePO4 Battery Pack With All Direction Wheels
This battery pack is suitable for terminal load whose working watts ≤15KW.
EV level grade A prismatic LFP cell 100ah via 15S3P are used to get this 48V 300AH lithium battery bank.
The Anderson connector is suitable to power large current. If you wanna other type of connectors, please feel free to tell us.
Specifications:
| Nominal voltage | 48V |
| Nominal capacity | 400Ah |
| Cell type | LiFePO4 prismatic 100AH |
| Cell configuration | 15S4P |
| Pack dimensions | custom design |
| Pack weight | Approx 200Kg |
| Standard charging voltage | 54.75V |
| Standard charging current | 60A |
| Max. continuous charging current | 150A |
| Discharging cut-off voltage | 37.5V |
| Standard discharging current | 150A |
| Max. continuous discharging current | 300A |
| Operation temperature | Charge:0°C~45°C Discharge:-20°C~60°C |
| Storage temperature | Less than 3 months:-20°C~ 45°C Less than 1 year:-20°C~25 °C |
| Humidity recommended | ≤75% |
Why lithium-iron-phosphate?
Lithium-iron-phosphate (LiFePO4 or LFP) is the safest of the
mainstream li-ion battery types. The nominal voltage of a LFP cell
is 3,2V (lead-acid batteries: 2V/cell). A 12.8V LFP battery
consists of 4 cells connected in series; and a 25.6V battery
consists of 8 cells in series.
Service life
LFP battery does not need to be fully charged. Service life even
slightly improves in case of partial charge instead of a full
charge. This is a major advantage of LFP compared to lead-acid.
Other advantages are the wide operating temperature range,
excellent cycling performance, low internal resistance and high
efficiency (see below).
Efficiency
In several applications (especially off-grid solar and/or wind),
energy efficiency can be of crucial importance.
The round trip energy efficiency of a LFP battery is 92%.
The charge process of lead-acid batteries becomes particularly
inefficient when the 80% state of charge has been reached,
resulting in efficiencies of 50% or even less in solar systems
where several days of reserve energy is required (battery operating
in 70% to 100% charged state). In contrast, a LFP battery will
still achieve 90% efficiency under shallow discharge conditions.
Cell balancingand and monitoring
LFP batteries have integrated cell balancing and cell monitoring.
Up to 5 batteries can be paralleled and up to 4pcs 12V batteries or
2pcs 24V batteries can be series connected,so that a 48V battery
bank of up to 1500Ah can be assembled. The cell
balancing/monitoring cables can be daisy-chained and must be
connected to a Battery Management System (BMS).
Battery Management System (BMS)
BMS Function:
1. Disconnect or shut down the load whenever the voltage of a
battery cell decreasesto less than 2,5V.
2. Stop the charging process whenever the voltage of a battery cell
increases to more than 4,2V.
3. Shut down the system whenever the temperature exceeds
75°C.
Compared with same capacity of lead acid batteries, lifepo4 batteries are 1/2 smaller in size, 2/3 lighter in weight, 5 times longer in cycle life, which are more compact, light-weight and eco-friendly.
Competitive Advantage:
1- Company advantages:
a- Quality Management:
Our sample/small order factory has been ISO9001 Quality Management System certifcated.
Our Pack production base for mass order have passed TS16949 Quality System, ISO14001 Environmental System and OHSAS18001 system certifications. And we have passed the test of the National Motor Vehicle Product Quality Supervision and Inspection Center. We always do daily production as per these systems.
b- Advanced hardware and software facilities
We established high-precision three-coordinate measuring machines, projectors, universal material tensile machines, and other measuring instruments to ensure the effective quality data.
c- Technical advantages:
Our technical team are all from China famous electric vehicle manufacturers. They all have more than 10 years' industry experiences. They have excellent R&D abilities. We also have the ability to develop BMS by ourselves.
2- Product advantages:
a- The cells we use are domestic high-quality cellsfrom China big cell manufacturers or imported cells from Sumsang, Panasonic.LG, etc .
b- BMS are realiable. BMS within 24S, we develop by ourselves. BMS above 24S, we purchase from China top 3 BMS manufacturers.
c- Advanced battery pack assembly technologies ensures the finished battery packs are of high quality.
Tag:
solar lithium ion batteries, , 48v 400ah solar lithium batteries, 20kwh solar lithium battery bank
