Best Portable and Lightweight LiFePO4 Battery
The KHZH BT Series 12V 120Ah LiFePO4 battery features Bluetooth technology, equipped with an advanced Battery Management System (BMS) and Bluetooth communication capabilities, allowing you to monitor battery performance and diagnose potential issues via your smartphone or tablet.
This Bluetooth lithium battery series is a direct replacement for lead-acid batteries, combining the advantages of Lithium Iron Phosphate (LiFePO4) technology with a smart BMS. It offers up to 50% weight reduction, 50% volume reduction, longer cycle life, and significantly faster charging.
At the heart of every KHZH Bluetooth lithium battery is a smart BMS that continuously monitors voltage, current, and temperature, and adjusts parameters as needed to ensure optimal battery life, performance, and safety. With the free Bluetooth app, you can instantly access the battery’s state of charge (SOC), voltage, cycle count, and a complete log of any potential problems.
Compared to traditional lead-acid batteries, KHZH batteries provide superior energy for high-demand applications. They also offer ultra-fast charging and discharging, high efficiency, and a longer cycle life: all without maintenance.
Unlike many lithium batteries, KHZH uses only the safest and most stable components, including a LiFePO4 cathode and a built-in BMS. The BMS ensures safe handling, long life, and high-precision SOC calculation.
Superior Performance
KHZH 12V 120Ah LiFePO4 batteries are designed and manufactured in China by Keheng, a global leader with over 20 years of experience in deep-cycle battery production. You can trust KHZH to provide top-quality products backed by exceptional customer support.
Key Competitive Advantages:
- Country of Origin Guarantee/Warranty
- Competitive Pricing
- Superior Product Features and Performance
- Timely Delivery with Quality Certification
- Strong Reputation and Service
- Small Orders Accepted
Internal Structure of the 12V 120Ah LiFePO4 Battery
KHZH ensures that every detail of the lithium battery pack design is geared towards maximizing safety and durability. All battery cells and pack components are rigorously selected and comply with strict ISO manufacturing standards.
The battery features an IP65 water-resistant design and a durable LiFePO4 battery case for optimal protection.
Battery Management System (BMS)
All KHZH LiFePO4 batteries come equipped with a smart internal BMS. This BMS features multiple protection functions, including overcharge, over-discharge, over-current, short circuit, and temperature detection, ensuring the battery’s safety and longevity. If the BMS disconnects the battery due to temperature limits, you must wait for the temperature to drop before reconnecting it.
If there is a parasitic drain causing the battery to malfunction, you may need to physically disconnect the terminals to reset the battery. While short-circuit protection safeguards the battery cells, it’s important to avoid them to prevent potential damage to cables or bolts.
Smart battery packs, when equipped with external communication data buses and charged using smart battery chargers, are essential for optimizing performance and lifespan.
LiFePO4 Battery Applications
- Solar/Wind Energy Storage System
- Golf Carts
- Recreational Vehicles (RVs)
- Marine Equipment
- UPS Backup Power System
- Solar Street Lights
KHZH’s Bluetooth LiFePO4 batteries are widely used in various outdoor and harsh environments, ensuring performance and safety can be monitored anytime, anywhere. They excel in hot and arid conditions, making them perfect for use in RVs, boats, and electric fishing vessels. Their robust design makes them a popular choice among leisure travelers seeking reliable power solutions.
Series and Parallel Configurations
KHZH’s new self-balancing feature allows for safe series and parallel connections, providing greater flexibility in energy storage and utilization.
This product supports parallel connection, ensuring sustained charging efficiency, and can charge up to 4 batteries simultaneously. Bluetooth connectivity does not interfere with battery usage. It is especially suitable for users who want to customize DIY voltage settings, providing flexible expansion options.
Technical Data
| Nominal Voltage | 12.8V |
| Rated Capacity | 12AH @0.5C to 9.6V |
| Stored energy | 1536Wh |
| Cycle life@100%DOD | 2000 Cycles |
| Approx. Weight | 14.7kg |
| Internal Resistance | ≤30.0 mΩ |
| Max. Charge Current | 100 A |
| Max. Discharge Current | 100 A |
| Charge Cut-off Voltage | 15.2V |
| Discharge Cut-Off Voltage | 9.6V |
| Dimensions | L385mm×W190mm×H250mm |
| Blutooth function | Avaliable |
| Operating Temperature Range
Charge Discharge Recommended |
32°F (0°C) to 113°F (45°C) 14°F (-20°C) to 140°F (60°C) 59°F (15°C) to 95°F (35°C) |
| Self-Discharge Rate | ≤3%/month |
| Life Expectancy (years) | 10 years @25°C in 80%DOD |
| Self Discharge | Approx. 2% per month @ 25°C |
| Long Term Storage | Charge every 6 months |
| Short Circuit Protection | Automatically recover after removal of short |
| Terminal Type | Female Copper Insert M8 (M8/mm) |
