Intelligent Power, Unmatched Control
Our premium Smart Series Group 31 battery delivers advanced performance for the most demanding users. With integrated Bluetooth monitoring and low-temperature heating, it provides unparalleled insight into your power system and reliable operation in any climate. The ultimate upgrade for those who want total control and peace of mind.
Benefits of Haicen Smart Group31 Batteries:
Bluetooth Smart Monitoring:
Pair with our app to view real-time data on state of charge, voltage, history, and track battery health from your smartphone.
Built-In Low-Temperature Heating:
Charges safely down to -20°C (-4°F). The integrated heating pad ensures reliable performance in freezing conditions, enabling year-round use.
Advanced Battery Management System:
Offers superior cell balancing and detailed diagnostics for maximum performance and lifespan.
All-Weather Reliability:
Engineered to perform reliably in both extreme heat and cold, thanks to its robust design and smart BMS.
Premium Performance:
Combines the proven reliability of the Group 31 form factor with cutting-edge technology for the most critical applications.
The LiFePO4 batteries VS Lead-acid batteries:
| Haicen LiFePO4 batteries | VS | Old technology -Lead-acid batteries |
| Stable discharge condition | Low temperature condition | Unstable discharge condition |
| 3,500 times | Cycle life | ＜500 times |
| Around 10 years | Design life | 3 years |
| As little as 3.5 hours | Charging time | Up to 8 hours |
| No memory, opportunity charge | Charge frequency | Must charge after use |
| Multiple built-in protections, high thermal and chemical stability | Safety | Gas inside may cause explosion |
| 85% or more nominal capacity achieved at high working load | Available capacity | Only 30%~50% nominal capacity achieved under high working load |
| Maintenance-free | Maintenance | Regular water-adding and inspection required |
| Pollution-free | Eco-friendly | Lead is a toxic substance, may cause human lead poisoning |
| Extremely low | Energy loss | 15% |
Key Points for Quality control:
Cell match: More strict cell matching standard, the difference of lnternal resistance is 1mΩ and voltage is 5mV.
Automatic cells welding: Cells are assembled by Automatic welding equipments to ensure the quality reliability and consistency.
100% Cycle test: All battery packs are 100% cycle tested (Fully Discharged→Fully Charged→Fully Discharged→60% Charged) before package and all test reports are stored.
Unique tracking number: All battery packs are lasered an unique number on the case side for quality tracking.
Certifications:
| UL1642(Cell) | IEC62619 (Cell) | UN38.3(Cell/ Pack) |
| IEC62133(Cell) | ROHS(Cell) | CE(Pack) |
Battery Dimensions:
Internal Structure of Haicen Smart Group31 Batteries:
SOC Display (optional):
Characteristics Curve:
Idea For:
● Four-Season RVing and Overlanding
● Professional Marine and Fishing Vessels
● Critical Off-Grid and Solar Installations
● Commercial and Industrial Equipment in Harsh Environments
● Any Application Requiring Remote Monitoring and Cold-Weather Operation
Customized items:
Bluetooth App design: Help you to design and upload customized App, or supply you our Source code for your design.
Case color: Customized case color is acceptable based on quantity more than 300pcs per batch.
Label design: We can help you to design customized label on the battery.
Carton design: Customized carton is acceptable based on quantity more than 200pcs per batch.
Certificates: 50% discount on certificates cost for first bulk order and 100% reback for future orders.
NDA agreement: NDA agreement is allowed and necessary to protect your benefits.
Ready to Upgrade Your Power?
[➔ Download the Full Specification Sheet (PDF)]
[⮟ Contact Our Experts for a Quote]
| TECH & SPECS | Model | ||||||
| HCG31S-12132BT | HCG31S-12132BH | HCG31S-12150BT | HCG31S-12150BH | HCG31S-12165BT | HCG31S-12165BH | ||
| Electrical Specifications | Nominal Voltage | 12.8V | 12.8V | 12.8V | 12.8V | 12.8V | 12.8V |
| Nominal Capacity | 132Ah | 132Ah | 150Ah | 150Ah | 165Ah | 165Ah | |
| Parallel Connection | Max. 6units | Max. 6units | Max. 6units | Max. 6units | Max. 6units | Max. 6units | |
| Serial Connection | Max. 4units | Max. 4units | Max. 4units | Max. 4units | Max. 4units | Max. 4units | |
| BMS | 4S150A | 4S150A | 4S150A | 4S150A | 4S150A | 4S150A | |
| Bluetooth | Android/IOS | Android/IOS | Android/IOS | Android/IOS | Android/IOS | Android/IOS | |
| Heat | No | Yes | No | Yes | No | Yes | |
| Circuit Protection | Over charge, Over discharge, Over current, Over temp, Short, Balance, Low temp | ||||||
| Cycle Life | 3000times Cycles @100%DOD and 6000times @80% DOD | ||||||
| Self Discharge | Less than 3% per month | ||||||
| Charge Efficiency | 100%@0.2C | ||||||
| Discharge Efficiency | 98-100%@1C | ||||||
| Charge Specifications | Charge Voltage | 14.4±0.2V | 14.4±0.2V | 14.4±0.2V | 14.4±0.2V | 14.4±0.2V | 14.4±0.2V |
| Standard Current | 26A | 26A | 30A | 30A | 33A | 33A | |
| Fast Current | 66A | 66A | 75A | 75A | 82A | 82A | |
| Discharge Specifications | Standard Current | 26A | 26A | 30A | 30A | 33A | 33A |
| Max. Con. Current | 132A | 132A | 150A | 150A | 150A | 150A | |
| Peak Current | 800A(300ms) | 800A(300ms) | 800A(300ms) | 800A(300ms) | 800A(300ms) | 800A(300ms) | |
| Cut-off Voltage | 10V | 10V | 10V | 10V | 10V | 10V | |
| Mechanical Specifications | Dimensions (mm) | 330x173x216mm(Group 31) | |||||
| Approx Weight(KG] | 15 | 15.5 | 15.5 | 16 | 15.5 | 16 | |
| Terminal Type | M8 | ||||||
| Case Color/material | Black Plastic case(ABS) | ||||||
| IP Rating | IP65 | ||||||
| Cell Type | Cylinder LiFePO4 cell | ||||||
| Cell holder | Yes | ||||||
| Temperature Specifications | Charge Temp | 0℃ to 55℃ (32℉ to 131℉) | -20℃ to 55℃ (-4℉ to 131℉) | 0℃ to 55℃ (32℉ to 131℉) | -20℃ to 55℃ (-4℉ to 131℉) | 0℃ to 55℃ (32℉ to 131℉) | -20℃ to 55℃ (-4℉ to 131℉) |
| Discharge Temp | -20℃ to 60℃ (-4℉ to 140℉) | ||||||
| Storage Temp | -5℃ to 45℃ (23℉ to 113℉) | ||||||
