1. Úvod
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. Bezpečnostní informace
Vždy dodržujte následující bezpečnostní opatření, abyste předešli zranění nebo poškození baterie a připojeného zařízení:
- Baterii nerozebírejte, nepropichujte ani neupravujte.
- Avoid exposing the battery to fire, extreme heat, or direct sunlight for prolonged periods.
- Neponořujte baterii do vody nebo jiných kapalin.
- K nabíjení používejte pouze dodanou 58.4V 18A nabíječku.
- Během nabíjení a provozu zajistěte dostatečné větrání.
- Uchovávejte mimo dosah dětí.
- Wear appropriate personal protective equipment (PPE) such as gloves and eye protection during installation and handling.
- Ensure all connections are secure and correctly polarized (positive to positive, negative to negative).
3. Obsah balení
Ověřte, zda jsou v balení přítomny všechny položky:
- 1 × JOSMA 48V 150Ah Lithium Golf Cart Battery
- 1 × 58.4V 18A Charger
- 1 × LCD Touch Monitor
- 1 × Uživatelská příručka (tento dokument)
- Screws & Accessories (M3 Screws*8, M4 Screws*8, M5 Screws*10, M8 Screws*2, Display Brackets)

4. Nastavení
4.1. Instalace baterie
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. Nabíjení baterie
Use the provided 58.4V 18A charger to ensure optimal charging and battery longevity.
- Připojte nabíječku k nabíjecímu portu baterie.
- Plug the charger into a standard AC power outlet.
- 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.
- Připojení mobilní aplikace: 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. Návod k obsluze
5.1. Obecný provoz
The JOSMA 48V 150Ah LiFePO4 battery provides reliable power for various applications:
- Golfové vozíky: Compatible with popular brands like EZGO, Club Car, and Yamaha. Offers a maximum range of up to 70 miles on a single charge.
- Další aplikace: Suitable for RVs, UTVs, boats, trolling motors, electric lawn mowers, camping setups, and solar energy systems.


5.2. Monitorování stavu baterie
The LCD monitor and mobile app provide comprehensive real-time data:
- Lcd monitor: Zobrazuje procento baterietage, svtage, current, capacity, and temperature.
- Mobilní aplikace: Offers detailed battery information, including charge/discharge status, cell balance, and protection alerts.
6. Údržba
6.1. Obecná péče
LiFePO4 batteries require minimal maintenance compared to lead-acid batteries:
- No watering or acid checks are required.
- Udržujte kontakty baterie čisté a bez koroze.
- Ensure the battery case is free from physical damage. The high-strength cold-rolled sheet metal case provides robust protection.
6.2. Řízení teploty
The battery features multi-stage temperature protection to ensure optimal performance and longevity:
- Teplota nabíjení: 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).
- Teplota vybíjení: 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).

7. Řešení problémů
7.1. BMS Protections
The built-in 200A Battery Management System (BMS) provides multiple layers of protection:
- Ochrana proti přebití: Zabraňuje nabití baterie nad bezpečnou úroveňtage limit.
- Ochrana proti přebití: Zabraňuje vybití baterie pod bezpečnou úroveň napětítage limit.
- Nadproudová ochrana: Chrání před nadměrným odběrem proudu.
- Ochrana proti zkratu: V případě zkratu automaticky odpojí baterii.
- Ochrana proti vysoké teplotě: Monitors and manages internal battery temperature to prevent overheating.
- svtage Balance: Ensures all cells within the battery pack are balanced for optimal performance and lifespan.

7.2. Běžné problémy
- 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. Specifikace
| Funkce | Specifikace |
|---|---|
| Značka | JOSMA |
| Model | JA-48150 |
| Jmenovitý svtage | 51.2 Volts (48V system) |
| Nominální kapacita | 150Ah |
| Energetická kapacita | 7.68 kWh |
| Maximální zátěžový výkon | 10.24 kW |
| Trvalý vybíjecí proud | 200A (BMS controlled) |
| Život cyklu | 6000+ cyklů |
| Nabíjecí svtage | 58.4V |
| Výstup nabíječky | 58.4V 18A |
| Doba nabíjení (0–100 %) | Přibl. 6 hodin |
| Složení článků baterie | Lithium-železo fosfát (LiFePO4) |
| Rozměry (D x Š x V) | 9 cm x 26.2 cm x 13 cm |
| Hmotnost položky | 125 libry |
| Typ terminálu | Terminál M8 |
| Materiál pouzdra | High-strength cold-rolled sheet metal |
| Provozní teplota (vybíjení) | -4 °F až 131 °F (-20 °C až 55 °C) |
| Provozní teplota (nabíjení) | 32 °F až 131 °F (0 °C až 55 °C) |
| Vlastnosti | Built-in 200A BMS, Touch LCD Monitor, Mobile APP (Bluetooth), Multi-Stage Temperature Protection |
9. Záruka a podpora
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 webwebu nebo prostřednictvím vaší nákupní platformy.