1. Sarrera
This manual provides essential information for the safe and efficient use of your LOSSIGY 48V 105Ah LiFePO4 Lithium Battery System. Please read these instructions carefully before installation and operation to ensure optimal performance and longevity of your battery system. This system is designed for applications such as golf carts, trolling motors, and marine use.

Image 1.1: The complete LOSSIGY 48V 105Ah LiFePO4 Lithium Battery System, including the battery, smart charger, and Bluetooth LCD monitor.
2. Produktua amaitu daview
2.1. Zer dago kutxan?
Your LOSSIGY 48V 105Ah Lithium Battery System package includes the following components:
- LOSSIGY 48V 105Ah LiFePO4 Battery
- 58.4V 18A Bateria-kargagailu adimenduna
- Bluetooth Touch Display with Bracket
- Reinforced Straps
- Taping & Terminals (Red and Black caps, bolts)

Image 2.1: Visual representation of all items included in the LOSSIGY 48V 105Ah Lithium Battery System package.
2.2. Ezaugarri nagusiak
- Integrated 48V System: A complete solution for 48V applications, including battery, charger, and monitoring.
- Bolumen automatikoatage Balancing: Integrated circuits maintain cell-to-cell voltage differences within 40mV during charging, enhancing durability.
- Deep Cycle Life: Achieves ≥4000 deep cycles at 80% Depth of Discharge (DOD).
- Powerful 200A BMS: Built-in Battery Management System protects against overcharging, over-discharging, overcurrent, short circuits, and extreme temperatures. Supports 200A continuous discharge and 1000A peak current (3-5 seconds).
- Dual Monitoring System: Bluetooth app connectivity and a direct-connect touchscreen display allow real-time monitoring of battery status and parameters.
- Eraikuntza malkartsua: Features high-density Grade A LiFePO4 cells, a shockproof and flame-retardant ABS casing, and an IP65 waterproof rating.

Image 2.2: An illustration detailing the internal structure and key features of the LOSSIGY battery, including the 200A BMS, IP65 waterproof design, and Bluetooth monitoring capabilities.

Image 2.3: This diagram illustrates the A-grade battery cells and the comprehensive protection features provided by the BMS, such as over-charge, over-discharge, over-current, short circuit, and low/high temperature cutoff.
3. Segurtasun informazioa
Adhering to safety guidelines is crucial when handling and operating lithium batteries. Failure to follow these instructions can result in property damage, injury, or death.
- Always wear appropriate personal protective equipment (PPE), including safety glasses and insulated gloves, when working with batteries.
- Ez zirkuitulaburtu bateriaren terminaletan. Honek bateriari kalte larriak eragin diezazkioke eta sute arriskua sor dezake.
- Ziurtatu konexio guztiak estuak eta seguruak direla arku elektrikoak eta gehiegi berotzea saihesteko.
- Ez desmuntatu, zulatu edo aldatu bateria. Barneko osagaiak ezin ditu erabiltzaileak konpondu.
- Mantendu bateria bero-iturrietatik, sugar irekietatik eta material sukoietatik urrun.
- Do not immerse the battery in water or expose it to excessive moisture, despite its IP65 rating.
- Use only the provided LOSSIGY smart charger or a charger specifically designed for LiFePO4 batteries with the correct voltage eta egungo zehaztapenak.
- Sute kasuan, erabili D klaseko su-itzalgailu bat edo ur kantitate handia. Ez erabili CO2 edo apar-itzalgailurik.
- Gorde bateria leku fresko, lehor eta ondo aireztatutako batean.

Image 3.1: This graphic highlights the comprehensive safety features integrated into the LOSSIGY battery, including protection against over-charge, over-discharge, over-current, short-circuit, low-voltage, and high-temperature conditions.
4. Konfigurazioa
4.1. Instalazio aurreko egiaztapen-zerrenda
- Egiaztatu bateria boltage (48V) matches your application's requirements.
- Ensure the installation area is clean, dry, and well-ventilated.
- Gather all necessary tools: wrenches, wire cutters/strippers, multimeter, and PPE.
- Confirm that your golf cart controller or motor system is compatible with a 48V LiFePO4 battery.
4.2. Bateriaren instalazioa
- Remove Old Batteries (if applicable): Disconnect the negative terminal first, then the positive terminal of your existing battery bank. Carefully remove the old batteries.
- Position the LOSSIGY Battery: Place the LOSSIGY 48V 105Ah battery in the designated battery tray. Ensure it is stable and secure. Use the provided reinforced straps if necessary to prevent movement during operation.
- Konektatu terminalak: Connect the positive (+) cable from your application (e.g., golf cart controller) to the positive (+) terminal of the LOSSIGY battery. Connect the negative (-) cable to the negative (-) terminal. Ensure connections are tight using appropriate wrenches.
- Egiaztatu konexioak: Double-check all connections for correct polarity and tightness. Incorrect polarity can cause severe damage.
4.3. Charger Connection
- Connect the charger's output plug to the charging port on the battery.
- Plug the charger's AC input cord into a standard wall outlet (100-240V AC).
- The charger will indicate charging status (refer to charger manual for specific LED indicators).
4.4. Bluetooth Touch Display Setup
- Mount the Bluetooth touch display using the provided bracket in a convenient location.
- Connect the display cable to the designated port on the battery.
- The display should power on and show real-time battery information.
- For Bluetooth connectivity, download the LOSSIGY app from your device's app store. Follow the in-app instructions to pair with your battery.
5. Funtzionamendu-argibideak
5.1. Hasierako karga
It is recommended to fully charge the battery before its first use to ensure optimal performance and calibration of the BMS.
5.2. Regular Operation
- Ensure all connections are secure before operating your golf cart or marine vessel.
- Monitor battery status via the Bluetooth app or LCD display during use.
- Avoid consistently discharging the battery below 20% to prolong its lifespan, although the BMS will protect against over-discharge.
5.3. Kargatzea
- Always use the provided 58.4V 18A smart charger.
- Connect the charger to the battery first, then to the AC power outlet.
- The charger will automatically stop charging when the battery is full.
- Disconnect the AC power first, then the charger from the battery when charging is complete.
5.4. Bluetooth App and LCD Monitor Usage
The Bluetooth app and LCD monitor provide real-time data on your battery's state of charge, voltage, current, temperature, and individual cell voltages. Refer to the specific instructions provided with the Bluetooth display for detailed operation and app pairing procedures.
6. Mantentzea
6.1. Garbiketa
- Keep the battery terminals clean and free of corrosion. Use a dry cloth to wipe down the battery casing.
- Do not use solvents or abrasive cleaners on the battery.
6.2. Biltegiratzea
- Bateria denbora luzez gordetzen baduzu, ziurtatu bere edukieraren % 50-70 inguru kargatuta dagoela.
- Gorde bateria leku fresko eta lehor batean, eguzki-argitik eta muturreko tenperaturetatik babestuta.
- Periodically check the battery's state of charge during storage and recharge if necessary to prevent deep discharge.
6.3. Ikuskapena
- Regularly inspect the battery casing for any signs of damage, swelling, or leaks.
- Check all cables and connections for wear, fraying, or looseness.
7. Arazoak
This section addresses common issues you might encounter with your LOSSIGY 48V 105Ah Lithium Battery System.
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Bateria ez da kargatzen | Charger not connected properly; Charger malfunction; Battery BMS protection activated. | Ensure charger is securely connected to battery and AC outlet. Check charger indicator lights. If BMS is active, disconnect load and charger, wait a few minutes, then try charging again. Contact support if issue persists. |
| No power output from battery | Loose connections; BMS protection activated (over-discharge, overcurrent); Battery fully discharged. | Check all terminal connections for tightness. If BMS protection is active, remove the load and attempt to charge the battery. If fully discharged, connect to charger. |
| Bluetooth display not working or showing incorrect data | Loose display cable; Display malfunction; App not connected. | Ensure the display cable is securely connected to the battery. Restart the display by disconnecting and reconnecting. For app issues, ensure Bluetooth is enabled on your device and the app is properly paired. |
| Reduced range or performance | Battery not fully charged; High power draw; Environmental factors (temperature). | Ensure battery is fully charged before use. Reduce heavy loads if possible. Performance may be affected by extreme cold or hot temperatures. |
8. Zehaztapenak
| Ezaugarri | Zehaztapena |
|---|---|
| Bateria mota | LiFePO4 (litio burdina fosfatoa) |
| Bolumen nominalatage | 48V |
| Edukiera Nominala | 105Ah |
| Energia | 5376Wh |
| BMS etengabeko deskarga-korrontea | 200A |
| Puntako deskarga korrontea | 1000A (3-5 seconds) |
| Bizitza Zikloa | ≥4000 cycles @ 80% DOD |
| Kargagailua Voltage | 58.4V |
| Kargagailuaren korrontea | 18A |
| Iragazgaitzaren balorazioa | IP65 |
| Jarraipena | Bluetooth App & LCD Monitor |
| Modelo zenbakia | 48105-1 |
| UPC | 757158493917 |
9. Bermea eta Laguntza
9.1. Bermearen informazioa
LOSSIGY offers a 5-year warranty for this 48V 105Ah LiFePO4 Lithium Battery System. This warranty covers defects in materials and workmanship under normal use and service conditions.
9.2. Laguntza Teknikoa
For technical assistance, troubleshooting not covered in this manual, or warranty claims, please contact LOSSIGY customer support. Professional technical support is available 24/7.
For more information or to contact support, please visit the official LOSSIGY store on Amazon: LOSSIGY Amazon Store




