YX850 Emergency Battery Module 5V-48V Auto Switch Standby – 5pcs

The YX850 emergency battery module is a universal lithium standby solution for e‑bikes, delivering reliable power from 5 V up to 48 V.

Key Features:

• Automatic switching on main power loss – zero‑downtime riding.
• Compact 5‑piece pack; easy installation in existing battery bays.
• Wide voltage range (5V‑48V) fits most e‑bike systems.
• High‑capacity lithium cells for stable, long‑life performance.
• Lightweight design minimizes added weight.

Ideal for commuters, delivery riders, and off‑road enthusiasts who need a dependable backup power source.