12V 50Ah LiFePO4 Open Battery A-Grade Cells 4000+ Cycles

Product Description

The Voltpro Energy 12V 50Ah LiFePO4 Battery is designed for customers looking for a compact and dependable lithium battery for 12V-class power systems.

The battery uses LiFePO4 A-Grade cells arranged in a 4S configuration, providing a nominal voltage of 12.8V and a rated capacity of 50Ah.

With approximately 640Wh of nominal energy, it can be used for solar energy storage, inverter backup, UPS systems, CCTV, networking equipment, lighting and other compatible DC or AC loads through a suitable inverter.

A JK-BD4A8S6P Smart BMS manages the battery cells and provides protection during charging and discharging. The BMS supports 60A charge current, 60A discharge current, 100A peak discharge and 0.4A cell balancing.

Key Highlights

12.8V 50Ah LiFePO4 Battery

640Wh Nominal Energy

LiFePO4 A-Grade Cells

4000+ Cycle Life

JK-BD4A8S6P Smart BMS

60A Charging Current

60A Continuous Discharge

100A Peak Discharge

0.4A Cell Balancing

4S LiFePO4 Configuration

16mm² Pure Copper DC Cable

16mm² Pure Copper Lugs

Suitable for Solar, Inverter, UPS & Backup Systems

Main Product Features

A-Grade LiFePO4 Cells

The battery is built using LiFePO4 A-Grade cells, selected for reliable performance and consistent operation.

LiFePO4 chemistry is well suited to rechargeable energy-storage applications because of its long cycle life, stable voltage characteristics and good overall durability.

The cells are rated for 4000+ cycles under suitable operating conditions.

JK-BD4A8S6P Smart BMS

The battery uses a JK-BD4A8S6P Smart BMS to manage and protect the battery pack.

The BMS provides:

• 60A Charge Current
• 60A Continuous Discharge
• 100A Peak Discharge
• 0.4A Cell Balancing
• Cell Voltage Monitoring
• Overcharge Protection
• Over-Discharge Protection
• Over-Current Protection
• Short-Circuit Protection
• Temperature Protection
• 0.4A Cell Balancing

The BMS provides 0.4A balancing to help maintain better voltage consistency between the individual cells in the 4S battery pack.

Proper cell balancing is important for maintaining battery performance and ensuring that individual cells operate within their appropriate voltage range.

16mm² Pure Copper Wiring

For the main battery connections, 16mm² pure copper DC cables are used.

The battery assembly also uses 16mm² pure copper lugs, providing a solid and reliable connection for the main power wiring.

16mm² Pure Copper DC Cable

Pure Copper Lugs

Red Positive Cable

Black Negative Cable

Approximately 1-foot main cable length

Battery Configuration

The battery is configured as a 4S LiFePO4 pack.

Four LiFePO4 cells are connected in series to provide a nominal battery voltage of approximately 12.8V.

Configuration: 4S × 50Ah

Nominal Energy: 12.8V × 50Ah = 640Wh

This provides approximately 0.64kWh of nominal energy storage.

Approximate Backup Capacity

The actual backup time depends on the load, inverter efficiency, battery condition, temperature and usable battery capacity.

Load Approximate Backup

50W ~11–12 Hours

100W ~5.5–6 Hours

200W ~2.7–3 Hours

300W ~1.7–2 Hours

500W ~1–1.1 Hours

800W ~35–45 Minutes

1000W ~30–35 Minutes

Backup figures are approximate and should be used as general estimates. Actual results vary depending on system efficiency and operating conditions.

What Can It Run?

When connected to a properly sized inverter, this 12V 50Ah battery can be used for various essential loads such as:

LED Lights

Wi-Fi Router

CCTV Cameras & DVR/NVR

LED TV

Small Fans

Networking Equipment

Small DC Appliances

Emergency Lighting

Other compatible low-power appliances

For appliances such as refrigerators, pumps or motors, the inverter must be properly sized to handle their starting/surge current.

Applications

Solar Energy Storage

Suitable for small 12V solar systems and energy-storage applications.

Inverter Backup

Can be used with a compatible 12V LiFePO4 inverter for backup power.

UPS Systems

Suitable for compatible LiFePO4 UPS systems.

Home Backup

Useful for essential backup loads such as lights, Wi-Fi, CCTV and TV.

CCTV & Security

Suitable for providing backup power to CCTV cameras and security systems.

Networking Equipment

Can provide backup power for routers and other networking equipment through a suitable setup.

Off-Grid Applications

Suitable for small off-grid and remote power applications.

DC Power Systems

Can be used in compatible 12V DC energy-storage applications.

Technical Specifications

Specification Details

Brand Voltpro Energy

• Product Type Open LiFePO4 Battery
• Battery Chemistry LiFePO4
• Nominal Voltage 12.8V
• Rated Capacity 50Ah
• Nominal Energy 640Wh / 0.64kWh
• Cell Type LiFePO4 A-Grade
• Cell Configuration 4S
• Cycle Life 4000+ Cycles
• BMS Brand JK Smart BMS
• BMS Model JK-BD4A8S6P
• Charge Current 60A
• Continuous Discharge 60A
• Peak Discharge Up to 100A
• Balancing Current 0.4A
• Cell Monitoring Yes
• Overcharge Protection Yes
• Over-Discharge Protection Yes
• Over-Current Protection Yes
• Short-Circuit Protection Yes
• Temperature Protection Yes

Main DC Cable 16mm² Pure Copper

Cable Lugs 16mm² Pure Copper

Positive Cable Red

Negative Cable Black

Main Cable Length Approx. 1 Feet

Recommended Applications Solar / Inverter / UPS / Backup / DC Systems

Charging & Installation

Use a LiFePO4-compatible charger or solar charge controller designed for a 12V-class LiFePO4 battery.

For inverter applications, use an inverter that is compatible with 12V LiFePO4 batteries and configure its charging and low-voltage settings according to the battery requirements.

Always maintain correct polarity when connecting the battery. Avoid short circuits and use suitable fusing and cable protection for the installation.

For high-current applications, professional installation is recommended.