Ebike Power Network

42V 2A Smart Lithium Battery Charger

$48.44 USD

~~$8.44 USD~~ $48.44 USD

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Socket Standard US

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

Smart CC/CV Charging Protocol: Implements automatic two-stage constant-current to constant-voltage charging to extend overall battery life.
Universal AC Input Voltage: Supports worldwide 100V–240V AC (50/60Hz) input for seamless operation anywhere.
Dual-Color LED Status Light: Visual charge monitoring:
- 🔴 Solid Red: Rapid Charging in Progress
- 🟢 Solid Green: Fully Charged / Standby Mode
Multi-Layer Circuit Protection: Built-in safeguards including Over-Voltage Protection (OVP), Over-Current Protection (OCP), Overload Protection, and Short-Circuit Protection.
Durable & Compact Enclosure: Lightweight, impact-resistant, fire-retardant casing engineered for daily portability and desk/garage charging setups.
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:

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.
Disconnection Order: Once charging is complete (green light), unplug the AC wall plug first before removing the DC plug from the battery.
Saturation Charge: For optimal cell balancing, leave the charger connected for 1–2 hours after the LED indicator initially turns green.
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.