1. Entwodiksyon
This manual provides essential information for the safe and efficient use of your JOSMA 48V 150Ah LiFePO4 Golf Cart Battery. This lithium iron phosphate battery is designed as a high-performance replacement for traditional lead-acid batteries, offering increased power, longer lifespan, and advanced monitoring capabilities. Please read this manual thoroughly before installation and operation.


2. Enfòmasyon sou Sekirite
Always observe the following safety precautions to prevent injury or damage to the battery and connected equipment:
- Pa demonte, pike, oswa modifye batri a.
- Avoid exposing the battery to fire, extreme heat, or direct sunlight for prolonged periods.
- Pa plonje batri a nan dlo oswa lòt likid.
- Sèvi ak sèlman chajè 58.4V 18A yo bay la pou chaje.
- Asire bon vantilasyon pandan chaje ak operasyon.
- Kenbe soti nan atenn timoun yo.
- Wear appropriate personal protective equipment (PPE) such as gloves and eye protection during installation and handling.
- Asire w tout koneksyon yo byen fèm epi yo byen polarize (pozitif pou pozitif, negatif pou negatif).
3. Pake kontni
Verifye ke tout atik yo prezan nan pakè a:
- 1 × JOSMA 48V 150Ah Lithium Golf Cart Battery
- 1 × 58.4V 18A Charger
- 1 × LCD Touch Monitor
- 1 × Manyèl Itilizatè (dokiman sa a)
- Screws & Accessories (M3 Screws*8, M4 Screws*8, M5 Screws*10, M8 Screws*2, Display Brackets)

4. Enstalasyon
4.1. Enstalasyon batri
The JOSMA LiFePO4 battery is designed for easy replacement of existing lead-acid batteries in compatible golf carts. Its lighter weight (50% less than lead-acid) simplifies handling.
- Ensure the golf cart is powered off and disconnect the old battery system.
- Carefully remove the old lead-acid batteries.
- Place the JOSMA LiFePO4 battery into the battery compartment. The battery features mounting feet and comes with fixing buckles and screws for secure and stable installation.
- Connect the battery terminals: positive (red) to positive, and negative (black) to negative. Ensure all connections are tight and secure.

4.2. Chaje batri a
Use the provided 58.4V 18A charger to ensure optimal charging and battery longevity.
- Konekte chajè a nan pò chaje batri a.
- Branche chargeur a nan yon priz kouran AC estanda.
- The charger's indicator lights will show the charging status. A full charge typically takes approximately 6 hours.
- Once fully charged, disconnect the charger from the power outlet and then from the battery.

4.3. LCD Monitor & Mobile App Connection
The intelligent LCD monitor and mobile app allow real-time monitoring of battery information.
- LCD Monitor Installation: Use the provided bracket and screws to install the LCD monitor in a convenient location on your golf cart dashboard. Connect the monitor cable to the battery's dedicated monitor port.
- Koneksyon aplikasyon mobil: Download the JOSMA battery monitoring app from your device's app store. Enable Bluetooth on your mobile device and pair it with the battery. Follow the in-app instructions to connect and view real-time battery data.

5. Operasyon Enstriksyon
5.1. Operasyon Jeneral
The JOSMA 48V 150Ah LiFePO4 battery provides reliable power for various applications:
- Golf Carts: Compatible with popular brands like EZGO, Club Car, and Yamaha. Offers a maximum range of up to 70 miles on a single charge.
- Lòt aplikasyon: Suitable for RVs, UTVs, boats, trolling motors, electric lawn mowers, camping setups, and solar energy systems.


5.2. Siveyans estati batri
The LCD monitor and mobile app provide comprehensive real-time data:
- LCD ki monitè kè bebe: Montre pousantaj batritage, voltage, current, capacity, and temperature.
- Aplikasyon mobil: Offers detailed battery information, including charge/discharge status, cell balance, and protection alerts.
6. Antretyen
6.1. Swen Jeneral
LiFePO4 batteries require minimal maintenance compared to lead-acid batteries:
- No watering or acid checks are required.
- Kenbe tèminal batri yo pwòp epi san korozyon.
- Ensure the battery case is free from physical damage. The high-strength cold-rolled sheet metal case provides robust protection.
6.2. Jesyon Tanperati
The battery features multi-stage temperature protection to ensure optimal performance and longevity:
- Tanperati chaje: The battery can be charged between 32°F (0°C) and 131°F (55°C). If the temperature drops below 23°F (-5°C), the BMS automatically disconnects the charging circuit and resumes at 32°F (0°C).
- Tanperati dechaje: The battery can be discharged between -4°F (-20°C) and 131°F (55°C). Discharge cuts off at -22°F (-30°C) and restores at -4°F (-20°C).

NAN. Depanaj
7.1. BMS Protections
The built-in 200A Battery Management System (BMS) provides multiple layers of protection:
- Pwoteksyon twòp chaj: Anpeche batri a chaje pi lwen pase vòltaj ki an sekirite litage limit.
- Pwoteksyon kont twòp egzeyat: Anpeche batri a dechaje anba vòltaj ki an sekirite litage limit.
- Pwoteksyon Surkouran: Pwoteje kont twòp konsomasyon kouran.
- Pwoteksyon Kout-Circuit: Li dekonekte batri a otomatikman nan ka ta gen yon kous kout.
- Pwoteksyon tanperati ki wo: Monitors and manages internal battery temperature to prevent overheating.
- Voltage Balance: Ensures all cells within the battery pack are balanced for optimal performance and lifespan.

7.2. Pwoblèm Komen
- LCD Monitor Malfunction: If the LCD monitor does not display information or functions sporadically, first ensure all cable connections are secure. If the issue persists, the mobile app can be used as an alternative for monitoring battery status. Contact customer support if the monitor remains non-functional.
- Charger Issues: If the charger is not functioning, verify the power outlet is working and the connections to both the battery and the wall are secure. If the charger is defective, contact customer support for a replacement.
8. Espesifikasyon
| Karakteristik | Spesifikasyon |
|---|---|
| Mak | JOSMA |
| Modèl | JA-48150 |
| Nominal Voltage | 51.2 Volts (48V system) |
| Kapasite nominal | 150Ah |
| Kapasite enèji | 7.68 kWh |
| Max chaj pouvwa | 10.24 kW |
| Kouran egzeyat kontinyèl | 200A (BMS controlled) |
| Sik lavi | 6000+ sik |
| Chaje Voltage | 58.4V |
| Sòti Charger | 58.4V 18A |
| Tan chaje (0-100%) | Apeprè. 6 èdtan |
| Konpozisyon selil batri | Lityòm Iron Phosphate (LiFePO4) |
| Dimansyon (D x W x H) | 9" x 26.2" x 13" |
| Pwa atik | 125 liv |
| Kalite tèminal | M8 Tèminal |
| Ka Materyèl | High-strength cold-rolled sheet metal |
| Tanperati Operasyonèl (Egzeyat) | -4 ° F a 131 ° F (-20 ° C a 55 ° C) |
| Tanperati Operasyon (Chaj) | 32 ° F a 131 ° F (0 ° C a 55 ° C) |
| Karakteristik | Built-in 200A BMS, Touch LCD Monitor, Mobile APP (Bluetooth), Multi-Stage Temperature Protection |
9. Garanti ak sipò
JOSMA provides a comprehensive 10-year after-sales service, which includes repairs and replacements. Additionally, the product comes with a 15-year warranty.
For any questions, technical assistance, or warranty claims, please contact JOSMA customer support. Our US-based warehouse ensures fast and efficient issue resolution, with responses typically provided within 24 hours.
Contact information can be found on the official JOSMA websit la oubyen atravè platfòm acha ou a.