43.8V 3A Smart Fast Charger
43.8V 3A Smart Fast Charger
BAYADOU 43.8V 3A Smart Fast Charger for 36V (12S) Lithium Iron Phosphate (LiFePO4) Battery Packs –
Active Cooling Fan, Smart CC/CV Charging Protocol & Interchangeable XT60 / Alligator Clip Output Options (CE Certified)
Keep your energy storage systems, trolling motors, solar banks, and utility vehicles fully charged and protected with the BAYADOU 43.8V 3A Smart Fast Charger (Model: SJT150E). Purpose-built exclusively for 12S 36V Lithium Iron Phosphate (LiFePO4 / LFP) battery chemistries, this high-efficiency 131.4W power supply delivers a precise 43.8V cut-off voltage to safely maximize cell capacity and extend battery service life.
Featuring an integrated active cooling fan, high-grade flame-retardant casing, and an advanced Constant Current / Constant Voltage (CC-CV) charging algorithm, this charger operates quietly and coolly under heavy loads. Available with versatile output options including XT60 connectors and heavy-duty Alligator Clips, it provides seamless plug-and-play charging for both enclosed battery packs and open terminal setups.
⚠️ Chemistry & Voltage Matching Guide
IMPORTANT CHEMISRTY & VOLTAGE NOTICE:
12S LiFePO4 SPECIFIC ONLY: Calibrated strictly for 36V nominal (12S configuration) Lithium Iron Phosphate (LiFePO4) batteries with a full charge cut-off voltage of 43.8V.
NOT FOR STANDARD LITHIUM-ION: Do NOT use this charger on standard 3.7V/cell Li-ion (NMC/LCO) batteries, as standard 36V Li-ion packs require a 42.0V cut-off.
Smart CC/CV Logic: High-efficiency constant current charging rapidly fills the battery to capacity before switching to constant voltage regulation for safe, balanced saturation.
🚀 Key High-Performance Features
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Tailored 43.8V Cut-Off Voltage: Engineered explicitly for 12-cell series (12S) LiFePO4 chemistry to achieve 100% full charge without over-stressing cells.
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Active Cooling Fan System: Built-in high-airflow fan regulates internal power electronics during continuous 3A fast-charging operations.
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Smart CC/CV Multi-Stage Charging: Auto-adjusts power output during the charge cycle and automatically cuts off power when full charge is reached.
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Versatile Terminal Connections: Select between standard XT60 connectors or heavy-duty Alligator Clips for quick connection to battery terminals or power grids.
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Global Plug Compatibility: Available with US, EU, UK, or AU AC wall plug options to suit regional power connections.
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Certified Safety Protection: CE certified with full protection against short circuits, reverse polarity, over-voltage, and internal over-temperature.
📊 Technical Specifications Matrix
| Specification Parameter | BAYADOU SJT150E Charger Specifications |
| Brand / Model | BAYADOU / SJT150E |
| Target Battery Chemistry | Lithium Iron Phosphate (LiFePO4 / LFP) ONLY |
| Battery Configuration | 12S Series (36V Nominal Pack) |
| Maximum Output Voltage | 43.8V DC |
| Output Charging Current | 3.0 Amps Continuous |
| Maximum Output Power | 131.4 Watts |
| Charging Logic | CC-CV (Constant Current - Constant Voltage) |
| Thermal Management | Active Internal Cooling Fan |
| Output Terminals | XT60 Connector / Heavy-Duty Alligator Clips |
| AC Input Range | Universal AC Power (US / EU / UK / AU Plugs) |
| Safety Certifications | CE Certified |
| Manufacturer Warranty | 1 Year Warranty |
📋 Ideal Applications
This 43.8V 3A LiFePO4 Fast Charger is engineered for 36V (12S) Lithium Iron Phosphate setups used in:
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36V Marine & Trolling Motor Batteries
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Solar Energy Storage Systems & Portable Power Stations
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36V E-Bikes, Scooters, and Electric Utility Carts
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Industrial & Off-Grid Backup Battery Banks
📦 Package Contents
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1 x BAYADOU 43.8V 3A 12S LiFePO4 Battery Charger with Cooling Fan
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1 x Regional AC Wall Power Cable (US/EU/UK/AU based on selection)
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1 x Selected Output Terminal Lead (XT60 or Alligator Clips)
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1 x Product User Manual
Maximize the lifespan and performance of your 36V LiFePO4 battery bank. Confirm your battery chemistry, select your plug style below, click Add to Cart, and order today!
SJT150E 43.8V 3A 36 Volt 12S Lifepo4 Fast Charger 36V Iron Phosphate Energy Storage Battery Charger
Charger description
Input Voltage:100-240V AC 50/60HZ
Output Voltage:43.8V
Output Current:3A
Size:135*65*45mm
Weight:0.27KG
Connector: crocodile clip / XT60 (other ports, please contact us)
Charging Plug: US/EU/UK/AU plug we can offer
Safety standard: CE
Apply to:36V 12S Lifepo4 battery pack
Notice:
When charging, first connector to the battery, then connect to AC; after full, cut off AC, then pull the battery plug. If you pull the battery plug first while charging, especially when the charging current is large (red light), it is very easy to damage the charger.
LED Light:
RED ---Charging
Green --- Fully charged, stop automatically and turn green when the battery is fully charged.
Charge mode: CC-CV
First stage: CC-constant current charging, the LED indicator is red. When charging to the rated voltage, it will switch to the second stage.
Second stage: CV-constant voltage charging, the current will gradually decrease until the LED indicator turns green, and the battery has been fully charged to 90% - 95%. The battery continues to charge at a small current until it is fully charged.
Parcel includes:
1pcs 43.8V 3A Lifepo4 Charger
1pcs AC Charger plug(US/EU/UK/AU plug you can choose)
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
