Weida 12.8V 50Ah Lead Acid Replacement Lithium Battery is a high-performance energy storage solution designed to replace traditional lead-acid batteries. This lithium-ion battery pack features advanced LiFePO4 (Lithium Iron Phosphate) technology, offering superior performance, longer lifespan, and enhanced safety compared to conventional batteries.









Weida 12.8V 50Ah Lead Acid Replacement Lithium Battery, Long Life Energy Storage Solution
Solar System Energy Storage Cycling Use
Standby Power Supply UPS (Uninterrupted Power Supply) Emergency Lighting
Characteristics:
Easy to monitor (with Bluetooth) Safest LiFePO4 Long Life Cycles
Light Weight Built-in Intelligent BMS Clean Energy
High Energy Density Low self-discharge rate Stable & Reliable
12V50Ah
Electrical Characteristics | Technology | Lithium Iron Phosphate |
Nominal Voltage | 12.8V | |
Nominal Capacity | 50Ah ±5%@0.2C | |
Energy | 704Wh | |
Cycle Life | 100%Depth of Discharge ~2000 cycles | |
Internal Resistance | 50mΩ | |
Charge | Charge mode | Constant current/constant voltage charging/cut-off current 0.02C |
Max. Charge Voltage | 14.6V | |
Standard Charge Current | 11A | |
Max. Charge Current | 15A | |
Discharge | Discharge Cut-off Voltage | 10V |
Standard Discharge Current | 27.5A | |
Max. Continuous Discharge Current | 30A | |
Operating Condition | Storage Temperature | 0ºC to 45ºC (32ºF to 113ºF) |
Humidity | 60±25% | |
Charge Temperature | 0ºC to 45ºC (32ºF to 113ºF) | |
Discharge Temperature | -20ºC to 45ºC (-4ºF to 113ºF) | |
Structure | Water Dust Resistance | IP22 |
Terminal | / | |
Carrying | / | |
Case and Cover | PVC | |
Dimension (L*W*H) | Approx. 325*132*90mm | |
Weight | Approx. 6.5kg | |
Connection | Battery to APP | Bluetooth |

Long Cycle Life: The battery provides over 2000 cycles at 100% Depth of Discharge (DOD), significantly reducing the need for frequent replacements.
High Safety and Reliability: Equipped with a robust Battery Management System (BMS), it ensures safe operation and protects against overcharge, over-discharge, and short circuits.
Lightweight and Compact: Weighing only 6.5kg, this lithium battery is much lighter than its lead-acid counterparts, making it easier to handle and install.
Wide Operating Temperature Range: It operates efficiently between -20°C to 45°C, making it suitable for various environmental conditions.
Maintenance-Free: Unlike lead-acid batteries, this lithium battery requires no maintenance, reducing overall operational costs.
Specifications:
Nominal Voltage: 12.8V
Capacity: 50Ah
Energy Storage: 704Wh
Cycle Life: >2000 cycles (at 100% DOD)
Dimensions: 325*132*90mm
Weight: 6.5kg

This battery is ideal for a variety of applications, including:
Solar Energy Storage: Perfect for off-grid and on-grid solar systems.
Backup Power: Suitable for UPS systems, telecommunications, and emergency lighting.
Marine and RV: Provides reliable power for boats and recreational vehicles.
Lighting Systems: Ideal for solar street lights, lawn lights, and other outdoor lighting solutions.
Advantages Over Lead-Acid Batteries:
Higher Energy Density: Delivers more power in a smaller package.
Longer Lifespan: Lasts up to 20 times longer than lead-acid batteries.
Environmentally Friendly: Lithium batteries are recyclable and have a lower environmental impact.
This product represents a significant upgrade from traditional lead-acid batteries, offering enhanced performance and reliability for modern energy storage needs.
Frequently Asked Questions
1. Freight and delivery period?
In order for you to get the accurate shipping cost, please tell us the quantity you need and the delivery address; Usually the delivery is within 15-30 days, but it may be changed according to the quantity or other circumstances.
2. About colour difference?
All pictures are taken in kind, colour difference is anyone can not be avoided, due to the monitor, the process of taking pictures and making diagrams, the product may occur in colour slight deviation, the colour shall prevail in kind, so the buyer who is very critical of the colour should be careful to shoot Oh.
3. about shipping?
Custom products will be appropriate to extend the delivery time, the delivery time requirements of buyers, please contact our customer service Oh, customer service will give you a patient answer it
4. How to order Lead to lithium battery?
Firstly, please tell us your requirements or uses; secondly, we will quote according to your requirements or our suggestions; thirdly, we will arrange the formal order after the customer confirms the sample and delivers the deposit; fourthly, we will arrange the production.
5. Can I print my logo on the Lead to lithium battery products?
Yes, please inform us formally before production and confirm the design based on our samples first.
6. Why do you buy from us instead of other suppliers?
Fujian Huaxiang Power Technology Co., Ltd (formerly Quanzhou Huaqiao Battery Co., Ltd) was established in 1986. It is a large-scale enterprise specialising in R&D, production and sales of lithium batteries. Our products have passed CE, CNI (China National Information Infrastructure), Ministry of Electric Power, Ministry of Railways, Ministry of Radio and Television, etc., and serve customers in more than 160 countries and regions around the world.
7. How can we guarantee the quality?
Our production process has been certified with IS09001 Quality Management, IS014001 Environmental Management and OHSAS18001 Occupational Health Management System. Before mass production, we will produce samples for confirmation, process QC for quality control during production, and final inspection before shipment.
8. What services can we provide?
Accepted delivery terms:FOB,CFR,CIF,EXW.Accepted payment currencies:USD,EUR,RMB. Accepted payment method: T/TL/C. Language: English, Chinese.
We are looking for partners in the following areas.
Distributors, Dealers and Resellers: Weida® offers a provenLead to lithium battery product line, competitive pricing, strong brand endorsement and a complete support system.
Lead to lithium battery OEM/ODM:We provide customised design, process design, manufacturing, quality control and after-sales service for lead acid battery products. Through our services, energy storage OEM customers can benefit in terms of cost reduction, shorter production cycle and improved product competitiveness.
New energy EPC:Photovoltaic power plant developer, combining energy storage with solar photovoltaic systems. Developers of wind power plants, integrating energy storage with wind power systems.
Communication equipment companies: In today's rapidly changing information technology, the stability and reliability of uninterruptible power supplies (UPS) and communication equipment have become critical. Our FT series of lead-acid batteries are designed for these critical applications, ensuring stable and reliable power support under all circumstances.
EV Power Sector:Weida® offers a variety of power solutions, including AGM batteries and gel batteries, which are particularly suitable for electric vehicles such as electric scooters, electric bicycles, floor cleaners, electric wheelchairs, golf carts, forklifts, and other electric vehicles with long cycle life and high reliability.
Power companies:Power companies can use energy storage systems to improve grid stability and efficiency and reduce power costs. Power companies can promote the popularity of solar energy storage systems by offering customers solar energy storage system leasing or installation services.
Home Appliance Companies:Home appliance companies can use home energy storage systems as a complementary product to home appliances, providing customers with smarter and more energy-efficient home energy management solutions.
Contact us now. Get complete Lead to lithium battery solutions and quotes from the best suppliers from China! We are the perfect partner for distributors, dealers and resellers!