Basic Info.
Type
Lithium-Ion Batteries
Usage
Car, Bus, UPS, Electric Power, Lighting, Electric Bicycle, Boat
Discharge Rate
High Discharge Rate
Product Description
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: 2V/cell). A 12,8V LFP battery therefore consists of 4 cells connected in series; and a 25,6V battery consists of 8 cells connected in series.
Rugged
A lead-acid battery will fail prematurely due to sulfation:
- If it operates in deficit mode during long periods of time (i.e. if the battery is rarely, or never at all, fully charged).
- If it is left partially charged or worse, fully discharged (yacht or mobile home during wintertime).
A 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).
LFP is therefore the chemistry of choice for demanding applications. Efficient
In several applications (especially off-grid solar and/or wind), energy efficiency can be of crucial importance. The round-trip energy efficiency (discharge from 100% to 0% and back to 100% charged) of the average lead- acid battery is 80%.
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.
Size and weight
Saves up to 70% in space Saves up to 70% in weight
Expensive?
LFP batteries are expensive when compared to lead-acid. But in demanding applications, the high initial cost will be more than compensated by longer service life, superior reliability and excellent efficiency.
Bluetooth
With Bluetooth cell voltages, temperature and alarm status can be monitored. Very useful to localize a (potential) problem, such as cell imbalance.
Our LFP batteries have integrated cell balancing and cell monitoring. Up to 5 batteries can be paralleled and up to four 12V batteries or two 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) The BMS will:
- Generate a pre-alarm whenever the voltage of a battery cell decreases to less than 3,1V (adjustable 2,85-3,15V).
- Disconnect or shut down the load whenever the voltage of a battery cell decreases to less than 2,8V (adjustable 2,6V-2,8V).
- Stop the charging process whenever the voltage of a battery cell increases to more than 4,2V.
- Shut down the system whenever the temperature of a cell exceeds 50°C. See the BMS datasheets for more features
Battery specification |
VOLTAGE AND CAPACITY | LFP- Smart 12,8/60 | LFP- Smart 12,8/100 | LFP- Smart 12,8/150 | LFP- Smart 12,8/160-a | LFP- Smart 12,8/200-a | LFP- Smart 12,8/300 | LFP- Smart 25,6/200 |
Nominal voltage | 12,8V | 12,8V | 12,8V | 12,8V | 12,8V | 12,8V | 25,6V |
Nominal capacity @ 25°C* | 60Ah | 100Ah | 150Ah | 160Ah | 200Ah | 300Ah | 200Ah |
Nominal capacity @ 0°C* | 48Ah | 80Ah | 125Ah | 130Ah | 160Ah | 240Ah | 160Ah |
Nominal capacity @ -20°C* | 30Ah | 50Ah | 75Ah | 80Ah | 100Ah | 150Ah | 100Ah |
Nominal energy @ 25°C* | 768Wh | 1280Wh | 1920Wh | 2048Wh | 2560Wh | 3840Wh | 5120Wh |
*Discharge current ≤1C |
CYCLE LIFE (capacity ≥ 80% of nominal) |
80% DoD | 2500 cycles |
70% DoD | 3000 cycles |
50% DoD | 5000 cycles |
DISCHARGE |
Maximum continuous discharge current | 120A | 200A | 300A | 320A | 400A | 600A | 400A |
Recommended continuous discharge current | ≤60A | ≤100A | ≤150A | ≤160A | ≤200A | ≤300A | ≤200A |
End of discharge voltage | 11,2V | 11,2V | 11,2V | 11,2V | 11,2V | 11,2V | 22,4V |
OPERATING CONDITIONS |
Operating temperature | | | Discharge: -20°C to +50°C | Charge: +5°C to +50°C | | |
Storage temperature | -45°C to +70°C |
Humidity (non-condensing) | Max. 95% |
Protection class | IP 22 |
CHARGE |
Charge voltage | Between 14V/28V and 14,4V/28,8V (14,2V/28,4V recommended) |
Float voltage | 13,5V/27V |
Maximum charge current | 120A | 200A | 300A | 320A | 400A | 600A | 400A |
Recommended charge current | ≤30A | ≤50A | ≤75A | ≤80A | ≤100A | ≤150A | ≤100A |
OTHER |
Max storage time @ 25°C* | 1 year |
BMS connection | Male + female cable with M8 circular connector, length 50cm |
Power connection (threaded inserts) | M8 | M8 | M8 | M8 | M8 | M10 | M8 |
Dimensions (hxwxd) mm | 240 x 285 x132 | 197 x 321 x 152 | 237 x 321 x 152 | 237 x 321 x 152 | 237 x 321 x 152 | 347 x 425 x 274 | 317 x 631 x 208 |
Weight | 12kg | 15kg | 20kg | 20kg | 22kg | 51kg | 56kg |
*When fully charged |
Address:
No. 2 Shuangxi Garden, Huzhen, Jinyun, Lishui, Zhejiang, China
Business Type:
Manufacturer/Factory, Group Corporation
Business Range:
Agriculture & Food, Apparel & Accessories, Electrical & Electronics, Light Industry & Daily Use, Lights & Lighting, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Tools & Hardware
Management System Certification:
ISO 9001, ISO 14001
Company Introduction:
Zhejiang huatai mechincal&energy Co., Ltd., located in huzhen town, jinyun, lishui, Zhejiang, China. Was founded in 1992, started with the mechanical sawing machine industry, the development of the company has photovoltaic energy department and mechanical sawing machine department. The photovoltaic energy department mainly produces various types of monocrystalline&polycrystalline modules and junction boxes with an annual output of over 200MW. The company has a professional and mature production line and manufacturing personnel, for your product quality escort. Mechanical sawing machine department specializing in the production of GB series horizontal, vertical, gantry column type metal band sawing machine, welding machine, saw blade, milling cutter, three side edge and other products. Mainly used for sawing black, non-ferrous metals, plastics and other non-metallic materials. Collect the essence of similar products at home and abroad, with the characteristics of making the saw blade continuously toothed, continuously belt, energy saving and material saving.
Our company will expand the market by the quality, make friends by the prestige, win the trust of the customer by the reasonable price, is willing to cooperate with the vast number of new and old customers, create a brilliant tomorrow!