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Original price was: 12,200.00৳ .11,000.00৳ Current price is: 11,000.00৳ .
12V 40Ah Lithium Battery Price in Bangladesh: contact United Electronics to confirm the exact battery model, capacity, charging requirements and current quotation for your application.
If you are searching for the 12V 40Ah Lithium Battery Price in Bangladesh, United Electronics provides rechargeable lithium battery solutions for compatible solar, backup and DC-powered applications. A 12V 40Ah lithium battery offers a practical combination of energy-storage capacity, rechargeable operation and compact system integration for different residential, commercial and project requirements.
With a nominal voltage of 12V and a rated capacity of 40Ah, the battery provides approximately 480Wh of nominal energy, calculated as 12V × 40Ah = 480Wh. Actual usable energy and backup duration can vary depending on battery chemistry, discharge conditions, connected load, system efficiency and battery protection settings.
The 12V 40Ah Lithium Battery is designed to store electrical energy for compatible 12V systems. Compared with smaller 12V 15Ah batteries, the 40Ah capacity provides considerably greater nominal energy storage and can therefore support applications requiring higher energy capacity.
The battery may be used with appropriately designed solar systems, DC backup equipment and other compatible electrical applications.
Before installation, the charging voltage, load requirements and overall electrical system should always be checked for compatibility with the battery.
The nominal energy capacity of a battery can be estimated by multiplying its nominal voltage by its rated ampere-hour capacity.
12V × 40Ah = 480Wh
Therefore, a 12V 40Ah battery provides approximately 480Wh nominal energy capacity.
However, nominal energy should not be confused with guaranteed usable energy. The amount of energy actually available to a connected device can be affected by discharge limits, battery chemistry, temperature, system losses and protection settings.
This is particularly important when calculating backup time.
A 12V 40Ah Lithium Battery can be considered for compatible solar applications where rechargeable energy storage is required.
During daylight hours, a solar panel generates electrical energy. A compatible solar charge controller regulates the charging process and transfers energy to the battery. The stored energy can then be used when solar generation is insufficient or unavailable.
The solar panel and charge controller must be correctly sized and compatible with the battery’s charging requirements.
A larger battery does not automatically provide a better solar system if the solar panel cannot generate sufficient energy to recharge it.
The battery can also be considered for compatible 12V DC backup applications.
Depending on the electrical requirements, possible applications can include selected solar lighting systems, emergency lighting, monitoring equipment, communication equipment and other compatible DC loads.
Actual suitability depends on the equipment’s voltage, current and energy requirements.
Customers should therefore verify the load specification before selecting a battery.
Lithium batteries are widely used for modern rechargeable energy-storage applications.
Their suitability for a particular system depends on battery chemistry, cell configuration, charging characteristics and protection design.
The exact lithium chemistry of a specific product should be verified from its technical datasheet. A product should not automatically be described as LiFePO4 unless the manufacturer or product specification confirms that chemistry.
This is particularly important for professional quotations and tender submissions.
Many modern lithium battery systems may incorporate a Battery Management System (BMS) to manage or protect battery operation.
However, BMS functions differ between products. Features such as overcharge protection, over-discharge protection, over-current protection, short-circuit protection or temperature monitoring should only be claimed when confirmed by the manufacturer.
For professional projects, customers should request the technical specification of the exact battery model being supplied.
There is no single fixed backup time for a 12V 40Ah battery.
Although the battery has approximately 480Wh nominal energy, actual operating time depends on the connected load and usable battery energy.
A low-power device can operate for longer than a high-power device using the same battery. If an inverter is used to convert DC power to AC, conversion losses will also reduce the energy available to the final load.
For this reason, backup requirements should be calculated using actual load consumption rather than making a fixed backup-hour claim.
The 12V 40Ah Lithium Battery in Bangladesh can be considered for compatible solar systems, DC backup applications, emergency lighting, selected solar lighting systems and other suitable 12V equipment.
For professional installations, the battery should be selected according to the complete system design, including load consumption, charging capacity, required backup period and operating conditions.
The 12V 40Ah Lithium Battery Price in Bangladesh varies according to battery chemistry, cell quality, construction, protection system, brand, warranty and quantity.
Customers should therefore avoid comparing batteries only by their 12V 40Ah rating. Two batteries with the same advertised voltage and capacity can differ substantially in cell quality, protection features, cycle performance and warranty.
For project or bulk requirements, customers should request a technical specification and commercial quotation before final selection.
SPECIFICATIONS
Nominal Voltage: 12.8V
Capacity: 60Ah
Watt-hour: 768Wh
Charging Voltage: 14.6V
Max Charging Current: 30A
Max Discharging Current: 60A
Cell Type: Li-ion / LiFePO₄
Cycle Life: 2000+ Cycles
Operating Temperature: -10°C to 60°C
KEY FEATURES
12V 60Ah High Capacity
Premium Lithium Cells
Long Life & Durable
Built-in Smart BMS Protection
Overcharge & Over-discharge Protection
Overcurrent & Short Circuit Protection
Fast Charging
Eco-friendly & Safe
Before ordering 12V 40Ah Lithium Battery Price in Bangladesh, confirm the exact product configuration, quantity and installation requirements. Review the specifications on this page together with the supplied model’s documentation. A project quotation should identify the offered model, delivery scope and warranty terms so that different offers can be compared consistently.
Send the required quantity, delivery location and application details to United Electronics. If installation or additional accessories are required, request these as separate line items. For a replacement product, provide the existing model details and connection or mounting requirements. Availability and the current price should be confirmed before placing the order.
Match the battery or protection component to the system voltage, battery chemistry and current requirements. Confirm charging and discharge limits for the exact model; capacity alone does not establish compatibility. For battery banks or replacement installations, check the manufacturer’s instructions before connecting equipment.
See our 10A MPPT Solar Charge Controller in Bangladesh for related charging options. Compatibility must be confirmed for the exact combination; a related listing is not a guarantee that the products can be used together.
For general renewable energy information in Bangladesh, visit the Sustainable and Renewable Energy Development Authority (SREDA). This general resource does not certify the product or replace its technical documentation.
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