AMPTRON® 48V 75Ah Lithium LiFePO4 Batteries are an alternative replacement (AR) for most applications currently using a deep cycle Gel, AGM or Flooded Lead Acid battery. The maximum continuous discharge current is 75A and peak discharge current 200A for 5 seconds.
Description
These batteries are designed using only the highest quality components and are backed with our 4-year warranty. This includes the use of a robust Battery Management System (BMS), Aluminium encased prismatic cells, solid busbar connectors and internal protection to reduce movement and damaging vibrations. Our batteries can also be placed on their sides providing versatile installation options.
The integrated Battery Management System is designed to monitor, protect, and optimise each cell within the battery. The BMS maximises the performance of the battery by automatically balancing the cells and protecting them from over charging, over discharging, over temperature, and excessive charge or discharge currents. Our integrated BMS allows our batteries to be used as an alternative replacement for most applications requiring deep cycle batteries, however if the charging system does not support a Lithium charge profile, there are some compromises – please contact Amptron for more information.
Features
HEAVY DUTY – BUILT IN BATTERY MANAGEMENT SYSTEM
AMPTRON® Lithium batteries use a built-in Battery Management System (BMS) designed to automatically disconnect the charging or discharging circuits to prevent damage to the cells and internal electronics from abnormal operation and helps to ensure safe and accurate operation of the battery.
THE BMS PROTECTION FEATURES INCLUDE:
Low Voltage Protection Switch – Automatically disconnects the discharge circuit to prevent damage to the cells if the battery drains below a pre-set voltage.
Over Voltage Protection Switch – Automatically disconnects the charging circuit to prevent damage to the cells if the battery is being charged above a pre-set maximum voltage.
Short Circuit and Over Current Protection Switch – Automatically disconnects the discharge circuit if the load draws currents above pre-set limits.
Reverse Polarity Protection Switch – Automatically disconnects the charge and discharge circuits if a reverse polarity condition is detected.
Thermal protection – Built-in thermal sensors will automatically disconnect the charge and discharge circuits when excessive temperatures are detected.
CELL BALANCING The BMS balances the cells through top-end balancing and will discharge cells that exceed 3.65V during charging.
THERMAL FUSE: Our latest prismatic cell technology is manufactured with an internal thermal safety fuse between the anode and cathode that will break and disconnect in the unlikely event the cell would begin to overheat.
SAFETY VENT: Each cell has a high-pressure safety vent that will flip open to release energy and prevent explosion.
FLAME RETARDANT ELECTROLYTE: Our cells are manufactured with a flame retardant additive in our electrolyte
Specifications
Detailed information and noted points:
Item
Specification
Description/Remark
Model
AT-LFP-48-75BV01
48V 75Ah / 75A cont discharge LiFePO4 Battery
Chemistry
Lithium Iron Phosphate (LiFePO4)
Battery dimensions
L-520mm x W-268mm x H-228mm
L x W x H
Weight
35kg
Cell type
3.2V 75Ah
Prismatic cells
Battery module
16 pcs 3.2V 75Ah cells, 1 parallel and 16 serial
Casing material for single cell
Aluminium
Standard capacity（0.2C5A）
51.2V 75Ah / 3840Wh
Cycle life
> 2000 cycles at 100% Depth of Discharge (DoD)
Under normal usage where the DOD is <80%, cycle life is expected to be up to 5000 cycles
Rated voltage
51.2V
Working voltage per cell: 3.2V
Charge voltage
58.4V
Max. charge voltage per cell: 3.65V
Cut-off volage
Nominal 40V
Cut-off is triggered when the first cell reaches 2.50V
Depth of discharge (DoD)
100%
Batteries can be discharged to 100% of the rated capacity
Optimum charge current
15A
0.2C
Charging time
Approximately 5 hours
When charging from low voltage cut-off point
Rapid charging
Max. charge current 75A (1C75A)
Cell max voltage < 3.9V
Max continuous discharge current
75A
1C, cell min voltage> 2.0v
Peak discharge current
200A
2.6C（5 seconds)
Discharge performance in normal temperature
15A (0.2C15A) ≥ 100％ 75A (1C37.5A) ≥90％
Operating temperatures
Standard 0℃～45℃ Discharge -20℃～65℃ Storage -20℃～45℃
Impedance (Max, at 1000Hz.)
≤ 45mΩ
Storage performance
Capacity can be kept ≥ 80% in storage for 12months
Battery should be kept at -20℃ ～ 45℃ where it’s dry, clean and well-ventilated.
Connecting Terminals Pos (+) & Neg (-)
M8
IP Rating (Ingress Protection)
IP65
Protected from total dust ingress & Protected from low pressure water jets from any direction
At Perth Pro, we not only provide top-quality products, but we also offer professional installation services. Our expert technicians can install products like this one, ensuring it integrates seamlessly with your vehicle's setup.
Get a Quote - We can provide a quote on installing individual products such as a dual battery, lightbar or UHF or quote the installation of an entire build. Contact us via our contact form to discuss your needs. We'll provide a personalized quote for a complete system based on your preferences and budget, including installation services.
Please note we do not usually do installations on products purchased from other companies; exceptions may apply. It is best to contact us for further information.
We currently have one workshop located in Bayswater, Western Australia.
Delivery – Pickup or Shipping
For Lithium batteries, most will have a $49 flat rate delivery charges, for some, because of their extreme weight, you may need to contact us to provide a shipping cost or you can simply come and pickup your order from our shop.
We do not ship Lithium batteries outside of Australia.
If you choose to pickup your order, we will call you when your items are available. This generally takes between 1-3 business days. Please note that we do not regularly stock all items in our shop so please wait for us to confirm they are ready for pickup or call us to check availability.
