Description
Overview
DC step-down module that converts a 20–90V battery input (via XT60, XT90 or EC5, or a 5.5×2.1mm jack) into a 5V USB output with dual Type-C ports supporting PD65W and QC3.0/QC2.0. Intended to power phones and laptops directly from an e-bike or large lithium pack.
Specifications
- Input voltage: DC 20–90V
- Input connectors: XT60 male/female, XT90 male/female, EC5 male/female, or 5.5×2.1mm jack
- Output: 5V USB with dual Type-C ports
- Fast charging: PD65W, PD/QC3.0, QC2.0
- Function: step-down (buck) converter with integrated charging ports
Purpose
An e-bike or large lithium pack holds far more energy than a phone battery, but its voltage is unusable directly. This module taps that pack and produces a regulated 5V with fast-charging negotiation, effectively turning the vehicle into a high-capacity power bank.
Applications
- E-bikes and e-scooters — phone and laptop charging on the move
- Large lithium packs used as portable power
- DIY power stations and field charging
- Camping, touring and remote work setups
How to Use
- Confirm your pack voltage is within the 20–90V input range before connecting.
- Choose the input connector variant that matches your battery.
- Observe polarity strictly — reversed input will destroy the module immediately.
- Mount the module where it is protected from moisture and vibration.
- Use a PD-capable cable for 65W output; a standard cable will charge at a slower rate.
Need help specifying this connector?
Use our practical guides for current and wire selection, connector validation and OEM harness drawings.




































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