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Tired of Heavy, Short-Lived Lead-Acid Batteries?
Upgrade your fishing experience with Haicen's drop-in replacement LiFePO4 batteries. Designed to fit your existing compartment and wiring, our batteries deliver 3x the runtime, half the weight, and zero maintenance compared to lead-acid. Spend less time charging and more time catching.
Key Benefits:
Deep Cycle Excellence:
Provides steady, consistent power throughout the day, ensuring your trolling motor maintains optimal speed from sunrise to sunset.
Built for the Water:
A fully sealed design protects against moisture and corrosion, making it ideal for the marine environment.
Lightweight Power:
Weighs less than half of a comparable lead-acid battery, increasing your boat's efficiency and ease of handling.
Zero Maintenance:
Never worry about watering terminals again. Just charge it and go.
Essential Safety:
A built-in BMS provides protection from overcharge, over-discharge, and short circuits.
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) |
Dimensions:
Internal Structure:
SOC Display (optional):
Characteristics Curve:
Market Applications:
● Freshwater Fishing Boats
● Inshore Saltwater Fishing
● Weekend Angler and Recreational Boating
● Jon Boats and Small Skiffs
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 benifits.
Find the Perfect Size for Your Boat | Request a Quote Today
| TECH & SPECS | Model | |||
| HCG31S-3660BT | HCG31S-3652BT | HCG31S-3665BT | ||
| Electrical Specifications | Nominal Voltage | 36V | 36V | 36V |
| Nominal Capacity | 52Ah | 60Ah | 65Ah | |
| Parallel Connection | Max.6units | Max.6units | Max.6units | |
| Serial Connection | NO | NO | NO | |
| BMS | 12S60A | 12S60A | 12S60A | |
| Bluetooth | Android/IOS | Android/IOS | Android/OS | |
| Heat | No | No | No | |
| 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 | 43.2±0.6V | 43.2±0.6V | 43.2±0.6V |
| Standard Current | 10A | 12A | 13A | |
| Fast Current | 26A | 30A | 32A | |
| Discharge Specifications | Standard Current | 10A | 12A | 13A |
| Max. Con. Current | 52A | 60A | 60A | |
| Peak Current | 500A(300ms) | 500A(300ms) | 500A(300ms) | |
| Cut-off Voltage | 30V | 30V | 30V | |
| Mechanical Specifications | Dimensions (mm) | 330x173x216mm(Group 31) | ||
| Approx Weight(KG] | 16.5 | 17 | 17 | |
| 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℉) | ||
| Discharge Temp | -20℃ to 60℃ (-4℉ to 140℉) | |||
| Storage Temp | -5℃ to 45℃ (23℉ to 113℉) | |||
LiFePO4 batteries offer superior performance for trolling motors due to their higher energy density (50-60% lighter than lead-acid), consistent voltage output throughout discharge (maintaining thrust power), and deeper discharge capability (80-100% DoD vs. 50% for lead-acid). They also charge 3-5x faster and last 5-10x longer (2,000+ cycles), making them ideal for long fishing days.
Our batteries feature IP67 waterproof ratings, corrosion-resistant casings, and vibration-resistant internal structures. The BMS (Battery Management System) protects against saltwater exposure, humidity, and temperature fluctuations, while built-in safeguards prevent damage from accidental impacts or splashing.
They integrate Bluetooth-enabled BMS for:
Real-time tracking: Monitor voltage, current, temperature, and remaining runtime via smartphone.
Custom alerts: Receive notifications for low charge, overheating, or connection errors.
Diagnostic data: Access cycle history and health reports to plan maintenance.
