42V 2A Smart Lithium Battery Charger
42V 2A Smart Lithium Battery Charger
YYHQQBAD 42V 2A Smart Lithium-Ion (Li-Ion / Li-Poly) Battery Charger –
100–240V AC Input with DC 5.5mm × 2.5mm Plug (Engineered for 10S 36V Nominal E-Bike & E-Scooter Battery Packs) – CE Certified with LED Charge Status Indicator & Multi-Point Circuit Safety
Keep your electric bicycle or e-scooter topped off safely with the YYHQQBAD 42V 2A Smart Lithium Battery Charger. Specially designed for 10-Series (10S) 36V nominal lithium-ion and lithium-polymer battery packs, this intelligent power adapter delivers a stable, constant-current/constant-voltage (CC/CV) charge up to a maximum output of 42.0V DC at 2 Amps (63W Max Power).
Featuring a standard DC 5.5mm × 2.5mm (DC5525) barrel connector pin, this charger is a direct replacement or spare power supply for a wide variety of 36V downtube batteries, Hailong packs, folding e-bikes, and commuter scooters. Equipped with dual-color LED status feedback and multi-layer electronic circuit safeguards, it protects your battery cells during every charge cycle.
⚠️ Voltage & Battery Chemistry Compatibility Guide
IMPORTANT COMPATIBILITY & SAFETY NOTICE:
10S 36V Lithium-Ion Only: Designed strictly for 36V nominal (10S) Li-Ion / Li-Poly battery packs. (36V Nominal = 42.0V Full Charge Cut-Off).
Connector Size: Features a DC 5.5mm × 2.5mm barrel plug (also compatible with DC 5.5mm × 2.1mm sockets equipped with inner spring clips).
DO NOT USE ON LiFePO4 / Lead-Acid: Not compatible with Lithium Iron Phosphate (LiFePO4) or lead-acid batteries. Using this charger on incorrect chemistries can cause overheating or equipment damage.
🚀 Key High-Performance Features
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Smart CC/CV Charging Protocol: Implements automatic two-stage constant-current to constant-voltage charging to extend overall battery life.
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Universal AC Input Voltage: Supports worldwide 100V–240V AC (50/60Hz) input for seamless operation anywhere.
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Dual-Color LED Status Light: Visual charge monitoring:
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🔴 Solid Red: Rapid Charging in Progress
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🟢 Solid Green: Fully Charged / Standby Mode
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Multi-Layer Circuit Protection: Built-in safeguards including Over-Voltage Protection (OVP), Over-Current Protection (OCP), Overload Protection, and Short-Circuit Protection.
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Durable & Compact Enclosure: Lightweight, impact-resistant, fire-retardant casing engineered for daily portability and desk/garage charging setups.
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Tested Safety Compliance: Certified under CE European safety standards.
📊 Technical Specifications Matrix
| Specification Parameter | YYHQQBAD 42V 2A Charger Specifications |
| Brand Name | YYHQQBAD |
| Model / Item | 42V 2A Smart Li-Ion Battery Charger |
| Input Voltage Range | 100 – 240V AC, 50/60Hz (Worldwide Compatible) |
| Output Voltage & Current | 42.0V DC @ 2.0A (Max Power: 63W) |
| Target Battery System | 10-Series (10S) 36V Nominal Lithium Packs |
| Output Terminal Plug | DC 5.5mm × 2.5mm (DC5525 Barrel Connector) |
| Supported Chemistries | Lithium-Ion (Li-Ion) / Lithium-Polymer (Li-Poly) |
| Charge Indicator | Dual LED (Red = Charging | Green = Charged/Idle) |
| Safety Protections | OVP, OCP, Overload Protection, Short-Circuit Protection |
| Safety Certifications | CE Certified |
📋 Recommended Operating & Maintenance Rules
To maximize the life of both your charger and your 36V battery pack, follow these standard operation steps:
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Connection Order: Always plug the charger's DC output lead into the battery port first, then plug the AC power cord into the wall outlet.
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Disconnection Order: Once charging is complete (green light), unplug the AC wall plug first before removing the DC plug from the battery.
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Saturation Charge: For optimal cell balancing, leave the charger connected for 1–2 hours after the LED indicator initially turns green.
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Environment: Always charge in a cool, dry, and well-ventilated area away from direct sunlight or flammable materials. Never leave connected indefinitely when not in use.
📦 Package Contents
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1 x YYHQQBAD 42V 2A Smart Lithium Battery Charger (DC5525 Connector)
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1 x AC Power Cable Wall Cord
Keep your 36V e-bike or scooter ready for every trip. Select your power plug type, click Add to Cart, and order today!
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.
