1. Sarrera
This manual provides essential information for the safe and efficient use of your DATOUBOSS 12V 300Ah LiFePO4 Deep Cycle Battery. This lithium iron phosphate battery is designed for various applications requiring reliable and long-lasting power storage, such as RVs, marine systems, solar energy setups, and off-grid power solutions. Please read this manual thoroughly before installation and operation.
2. Segurtasun-argibide garrantzitsuak
Always follow these safety guidelines to prevent injury, damage to the battery, or other property. Failure to comply with these instructions may void your warranty.
2.1 Segurtasun-abisu orokorrak
- Ez zirkuitu laburtu borne positiboak eta negatiboak.
- Ez bota bateria sutara edo uretara.
- Use only a standard charger that matches the output voltaglitiozko bateriaren e.
- Mantendu bateria haurrengandik eta maskotengandik urrun.
- Ez desmuntatu, zulatu edo aldatu bateria.
- Ziurtatu aireztapen egokia kargatzen eta deskargatzen ari den bitartean.
2.2 Integrated Battery Management System (BMS) Protections
The DATOUBOSS LiFePO4 battery features an intelligent 200A BMS to protect the battery from various conditions. The BMS will automatically shut down the battery if a problem is detected and will turn it back on once the condition is corrected.
- Gainkarga Babesteko: Karga-bolumen gehiegizkoak eragindako kalteak saihesten ditutage.
- Gehiegizko deskargaren aurkako babesa: Protects against deep discharge that could harm the battery.
- Gainkorrontearen babesa: Gehiegizko korronte-kontsumoaren aurkako babes-neurriak.
- Zirkuitu laburren babesa: Automatically disconnects in case of a short circuit.
- High Temperature Cut-off: Disables operation if the internal temperature exceeds safe limits.
- Tenperatura baxuko babesa: Prevents charging or discharging at dangerously low temperatures.
- Zelula oreka aktiboa: Ensures uniform charge across all cells for extended lifespan.

Figure 1: Intelligent BMS Protections
3. Produktua amaitu daview
The DATOUBOSS 12V 300Ah LiFePO4 battery is a high-performance, deep-cycle energy storage solution. It utilizes Grade A lithium iron phosphate cells, offering superior energy density, stable performance, and a long operational life.
3.1 Ezaugarri nagusiak
- Integrated 200A Battery Management System (BMS) for comprehensive protection.
- Lightweight (approximately 31kg) and compact design for easy handling and installation.
- Utilizes Grade A LiFePO4 cells for enhanced safety and performance.
- Exceptional cycle life of 15,000+ cycles at 100% Depth of Discharge (DoD).
- Expected lifespan exceeding 10 years.
- Fast charging and discharging capabilities.
- No memory effect, allowing for flexible charging.
- Environmentally friendly, free from heavy metals, and non-toxic (SGS certified, RoHS compliant).
3.2 Aplikazioak
This battery is suitable for a wide range of applications, including:
- Recreational Vehicles (RVs) and camper
- Marine applications (boats, trolling motors, fish finders)
- Off-grid solar energy systems
- Etxeko energia biltegiratzea
- Emergency power supply and backup UPS
- Industrial and commercial uses

Figure 2: DATOUBOSS 12V 300Ah LiFePO4 Battery

Figure 3: Battery in an RV Application
4. Konfigurazioa eta instalazioa
4.1 Desontziratzea eta ikuskatzea
Upon receiving your battery, carefully unpack it and inspect for any visible damage. If damage is found, contact customer support immediately.
4.2 Connecting Batteries (Parallel and Series)
The DATOUBOSS 12V 300Ah LiFePO4 battery supports configurations of up to 4 batteries in parallel and 4 in series (Max. 4P4S). This allows for increased capacity and higher voltage sistemak.
- Konexio paraleloa: Connect positive terminals to positive terminals and negative terminals to negative terminals to increase total capacity (Ah) while maintaining the same voltage (12V).
- Serie konexioa: Connect the positive terminal of one battery to the negative terminal of the next to increase total voltage (V) while maintaining the same capacity (Ah).
- Series-Parallel (4P4S): For maximum energy storage, up to 16 batteries can be configured in a 4P4S arrangement, achieving a 51.2V 1200Ah system with 61440Wh of energy.
- Always use appropriate cables and connectors for your chosen configuration.
- Ensure all batteries are at a similar state of charge before connecting them in parallel or series.

Figure 4: Home Energy Storage System (4P4S Configuration)

Figure 5: RV Power Supply System
4.3 Kargatzen
Use a LiFePO4 compatible charger that matches the battery's voltage and current requirements. The maximum charging current for a single 300Ah battery is 100A. Ensure the charger's output voltage is appropriate for a 12V LiFePO4 battery.

6. irudia: Bateriaren kargatzea
5. Funtzionamendua
Once installed and charged, your DATOUBOSS LiFePO4 battery is ready for operation. It offers a 100% depth of discharge, meaning you can use its full rated capacity without significantly impacting its lifespan. Monitor your system's voltage and current to ensure it operates within the battery's specifications.
6. Mantentzea
DATOUBOSS LiFePO4 batteries require minimal maintenance due to their robust design and integrated BMS. Follow these guidelines for optimal performance and longevity:
- Ohiko ikuskapena: Periodically check battery terminals for corrosion and ensure connections are secure.
- Garbiketa: Mantendu bateriaren gainazala garbi eta lehor.
- Tenperaturaren kudeaketa: While the BMS provides temperature protection, avoid operating or storing the battery in extreme temperatures for extended periods. The optimal operating temperature range is generally between -20°C to 60°C for discharge and 0°C to 45°C for charge.
- Biltegiratzea: If storing the battery for an extended period, ensure it is charged to approximately 50% State of Charge (SoC) and stored in a cool, dry place. The battery has an excellent low self-discharge rate.

Figure 7: Temperature Protection

8. irudia: IP65 iragazgaitz-maila
7. Arazoak
The integrated BMS handles most common issues by temporarily shutting down the battery. If the battery is not functioning as expected, refer to the table below. The BMS will automatically reset and resume normal operation once the fault condition is removed.
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Bateriak ez du energia ematen | BMS activated due to overdischarge, overcurrent, or short circuit. | Remove the load, check for short circuits, and recharge the battery. The BMS will reset automatically. |
| Bateria ez da kargatzen | BMS activated due to overcharge or low/high temperature. Incorrect charger. | Ensure charger is compatible and within specified voltage/current. Move battery to an appropriate temperature environment. The BMS will reset automatically. |
| Reduced capacity or performance | Aging battery (unlikely within warranty period), extreme operating conditions. | Ensure operating conditions are within specifications. If issues persist, contact customer support. |
8. Zehaztapen Teknikoak
| Zehaztapena | Balioa |
|---|---|
| Marka | DATOUBOSS |
| Eredua | 300AH |
| Bolumen nominalatage | 12V |
| Edukiera Nominala | 300Ah |
| Energia | 3840Wh |
| Bateriaren zelulen konposizioa | Litio burdina fosfatoa (LiFePO4) |
| BMS integratua | 200A |
| Deskarga-korronte nominatua | 200A |
| Deskarga-korronte maximoa | 240A |
| Kargatzeko gehieneko korrontea | 100A |
| Deskargaren sakonera (DoD) | %100 |
| Bizitza Zikloa | 15,000 ziklo baino gehiago |
| Esperotako Bizi-iraupena | 10 urte baino gehiago |
| Funtzionamendu-tenperatura (deskarga) | -20°C eta 60°C artean |
| Operating Temperature (Charge) | 0°C eta 45°C artean |
| Neurriak (L x W x H) | 51.94 x 23.7 x 21.71 cm |
| Pisua | 31 kg |
| Max. System Configuration | 4P4S (51.2V 1200Ah, 61440Wh) |

Figure 9: LiFePO4 vs. Lead-Acid Battery Comparison
9. Bermea eta bezeroarentzako laguntza
DATOUBOSS is committed to providing high-quality products and excellent customer service.
9.1 Bermea
This DATOUBOSS 12V 300Ah LiFePO4 battery comes with a 5 urteko bermea erosketa-datatik aurrera. Berme honek materialen eta fabrikazioaren akatsak estaltzen ditu erabilera normalaren pean. Gorde erosketaren egiaztagiria berme-erreklamazioetarako.
9.2 Bezeroarentzako laguntza
If you encounter any issues or have questions regarding your battery, please do not hesitate to contact our professional customer service team. We offer 24-hour support to assist you.
- Harremanetarako informazioa: Refer to your product packaging or the DATOUBOSS official webwebgunea, harremanetarako datu eguneratuenak lortzeko.
- Sareko baliabideak: Visit the DATOUBOSS brand store on Amazon or our website for FAQs and additional product information.

Figure 10: Warranty and Support Information





