More Power, Uncompromising Value
Step up to the larger Group 27 size for significantly extended runtime without stepping up in complexity. Our HCG27 battery delivers the essential LiFePO4 benefits—long life, deep cycling, and zero maintenance—in a high-capacity format, offering the best value for power-hungry applications.
Benefits of Haicen Group27 Batteries:
● High-Capacity Reliability:
The generous Group 27 form factor provides ample power to run more appliances for longer, making it ideal for weekend warriors and full-time travelers alike.
● Engineered for Value:
Experience the core longevity of LiFePO4 technology (3,000+ cycles) with the essential protections you need, all at an exceptional price point.
● True Drop-In Fit:
Designed to seamlessly replace your existing lead-acid Group 27 battery. No modifications required.
● Maintenance-Free Design:
A built-in BMS safeguards against overcharge, over-discharge, and short circuits. Install with confidence and forget.
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) |
Group 27 Battery Dimensions:
Internal Structure:
Characteristics Curve:
Idea For:
● Larger Travel Trailers & Fifth Wheels
● Weekend Fishing Boats & Pontoon Boats
● Off-Grid Solar Storage (Moderate Use)
● Power Carts & Industrial Equipment
Customized items:
● 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 | |||||
| HCG27-12120 | HCG27-12138 | HCG27-12150 | HCG27-2475 | HCG27-4835 | ||
| Electrical Specifications | Nominal Voltage | 12.8V | 12.8V | 12.8V | 24V | 48V |
| Nominal Capacity | 120Ah | 138Ah | 150Ah | 75Ah | 35Ah | |
| Parallel Connection | Max. 6units | Max. 6units | Max. 6units | Max. 6units | Max. 6units | |
| Serial Connection | Max. 4units | Max. 4units | Max. 4units | Max. 2units | No | |
| BMS | 4S150A | 4S150A | 4S150A | 8S80A | 16S50A | |
| Circuit Protection | Over charge, Over discharge, Over current, Over temp, Short, Balance | |||||
| 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 | 28.8±0.4V | 57.6±0.8V |
| Standard Current | 20A | 27A | 30A | 15A | 7A | |
| Fast Current | 60A | 69A | 75A | 37A | 17A | |
| Discharge Specifications | Standard Current | 20A | 27A | 30A | 15A | 7A |
| Max. Con. Current | 120A | 138A | 150A | 75A | 35A | |
| Peak Current | 600A(300ms) | 600A(300ms) | 600A(300ms) | 400A(300ms) | 200A(300ms) | |
| Cut-off Voltage | 10V | 10V | 10V | 20V | 40V | |
| Mechanical Specifications | Dimensions (mm) | 305x169x210mm(Group 27) | ||||
| Approx Weight(KG] | 13.5 | 14 | 14 | 14 | 13.5 | |
| 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℉to131℉) | ||||
| Discharge Temp | -20℃ to 60℃ (-4℉ to 140℉) | |||||
| Storage Temp | -5℃ to 45℃ (23℉ to 113℉) | |||||
