1. Introducció
This manual provides essential information for the safe and effective use of your OPTIMA Q31M-DP120 Dual Purpose Group 31 120 Ah Lithium Deep Cycle Battery. This battery is designed for both engine-starting and deep-cycle applications, suitable for marine, off-grid power, RV, and trolling motor uses. Please read this manual thoroughly before installation and operation.

Figure 1: OPTIMA ORANGETOP Q31M-DP120 Dual Purpose Lithium Battery.
2. Informació important de seguretat
WARNING: Failure to follow these safety instructions may result in serious injury, death, or property damage.
- Always wear appropriate personal protective equipment (PPE), including eye protection and gloves, when handling batteries.
- No curtcircuiteu els terminals de la bateria.
- Use only lithium-specific chargers or charging algorithms recommended by OPTIMA. Using an incompatible charger can damage the battery and pose a fire hazard.
- Ensure proper ventilation during charging to prevent gas accumulation.
- Mantingueu la bateria allunyada de flames obertes, espurnes i fonts de calor.
- No desmunteu, perforeu ni modifiqueu la bateria.
- Avoid dropping or subjecting the battery to severe impact.
- In case of fire, use a Class D fire extinguisher or copious amounts of water.
3. Característiques del producte
The OPTIMA Q31M-DP120 battery incorporates advanced technology for superior performance and reliability:
- Disseny de doble propòsit: Optimized for both engine starting (up to 1200A cranking power) and deep-cycle applications.
- Alta capacitat: 120 Ah capacity, offering extended power for various applications.
- Integrated Battery Management System (BMS): Microprocessor-controlled BMS monitors cell state of charge, balances cells, and protects against overcharging, over-discharging, and alternator 'load dump' events.
- OPTIMA CPR Built-in Jump-Start: Automatically reserves power to restart your engine if the battery is drained to 35% state of charge.
- Extreme Cold Performance: Reliable cranking performance down to -20°F.
- Construcció robusta: IP67-rated for water and dust intrusion, ensuring durability in harsh environments.
- QUAD Terminals: Simplifies accessory hookup with multiple connection points.
- Integrated Bluetooth App & NMEA 2000 Communication: Monitor battery status, track performance, and receive alerts via a user-friendly mobile application and marine network compatibility.
Video 1: OPTIMA ORANGETOP QH6 - The Proof is in the Power. This video highlights the robust power delivery and features of the ORANGETOP battery.
Video 2: ORANGETOP CPR Built-in Battery Jump Start. This video demonstrates the CPR feature, allowing the battery to restart itself after being drained.
4. Configuració i instal·lació
Proper installation is crucial for battery performance and safety. Refer to your vehicle or equipment manufacturer's manual for specific instructions.
4.1 Desembalatge
Carefully remove the Q31M-DP120 battery from its packaging. Inspect for any signs of damage. The package includes the Q31M-DP120 Battery unit.
4.2 Muntatge
- Ensure the battery is mounted securely to prevent movement or vibration, which can cause damage.
- The battery can be mounted in various orientations due to its sealed design, but ensure terminals are accessible.
- Verify that the battery fits seamlessly into existing Group 31 setups.
4.3 Connexions elèctriques
- Connect the positive (+) terminal first, then the negative (-) terminal.
- Use appropriate cable sizes and ensure all connections are clean, tight, and corrosion-free.
- The QUAD terminals simplify connecting multiple accessories.

Figure 2: OPTIMA battery installed in a boat, demonstrating marine application.

Figure 3: RV utilizing an OPTIMA battery for reliable off-grid power.
5. Instruccions de funcionament
The Q31M-DP120 is designed for versatile use across various applications.
5.1 Engine Starting
The battery provides up to 1200A of engine cranking power. Ensure all connections are secure before attempting to start the engine.
5.2 Deep Cycle Applications
For powering accessories, electronics, or trolling motors, the 120 Ah capacity offers extended run times. Monitor battery status via the Bluetooth app to manage power consumption effectively.
5.3 OPTIMA CPR Feature
If the battery's state of charge drops to 35% or below, the OPTIMA CPR feature will automatically reserve enough power to restart your engine. To activate the reserved power, follow the instructions provided in the Bluetooth app or on the battery itself.

Figure 4: An off-road vehicle demonstrating the battery's capability in demanding environments.
6. Manteniment i càrrega
Proper maintenance ensures the longevity and optimal performance of your OPTIMA Lithium battery.
6.1 Càrrega
- Only use a lithium-specific charger or follow the recommended lithium charging algorithm. Incompatible chargers can cause damage.
- The integrated BMS manages the charging process, but it is essential to use the correct charger type.
- For long-term storage, ensure the battery is fully charged and maintained with a compatible charger.
6.2 Atenció general
- Mantingueu els terminals de la bateria nets i lliures de corrosió.
- Regularly check battery connections for tightness.
- The IP67 rating protects against water and dust, but avoid prolonged submersion or exposure to extreme conditions beyond its rating.
Vídeo 3: Producte acabatview Vídeo. Aquest vídeo ofereix una visió generalview of the OPTIMA battery, including its features and benefits.
Video 4: Optima Batteries Video. This video explains the unique Spiralcell Technology and pure lead construction that gives OPTIMA batteries their performance advantages.
7. Solució De Problemes
If you encounter issues with your OPTIMA Q31M-DP120 battery, refer to the following common problems and solutions:
- La bateria no es carrega: Ensure the charger is lithium-compatible and properly connected. Check for loose connections or damaged cables.
- Engine Not Cranking: Verify battery connections are secure. Check the battery's state of charge via the Bluetooth app. If drained, activate the OPTIMA CPR feature.
- Avaria d'accessoris: Confirm that accessories are properly wired to the QUAD terminals and that the battery has sufficient charge.
- Problemes de connectivitat Bluetooth: Ensure your mobile device's Bluetooth is enabled and within range. Restart the app or your device if necessary.
For persistent issues, contact OPTIMA customer support.
8. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | Q31M-DP120 |
| Tipus de bateria | Lithium (LiFePO4) Dual Purpose |
| Mida del grup | Grup 31 |
| Capacitat | 120 Ah |
| Arrencada Amps | Fins a 1200A |
| Terminals | QUAD Terminal |
| Pes | 43.2 lliures |
| Dimensions (L x A x A) | 16 x 13 x 16 polzades |
| Valoració ambiental | IP67 |
| Comunicació | NMEA 2000, Bluetooth App |
| UPC | 721112920337 |
9. Què hi ha a la caixa
- 1 x OPTIMA Q31M-DP120 Battery
10. Garantia i Suport
10.1 Informació de la garantia
The warranty on ORANGETOP batteries is 24 mesos for free replacement for non-commercial use and 12 mesos free replacement for commercial use. Automotive use is not covered under this warranty. Please retain your proof of purchase for warranty claims.
10.2 Atenció al client
For technical assistance, warranty claims, or product inquiries, please contact OPTIMA customer service:
- Telèfon: 1-888-862-8462
- Weblloc: optimabatteries.com





