Precision Battery Monitoring
Baiway TX21 features an 8-80V wide voltage range and 500A current measurement, ensuring ultra-accurate capacity tracking for lithium, lead-acid, and LiFePO4 batteries.
Industrial-Grade Durability
Built with high-temperature-resistant ABS casing and gold-plated terminals, it withstands harsh environments (vehicles, solar systems, marine use).
Bluetooth Smart Control
Real-time data sync to your phone via BT, with customizable alarms for overcharge/discharge—ideal for RVs, golf carts, and energy storage systems.
Large LCD with Backlight
Crisp 2.4” display shows voltage, current, and remaining capacity (0-100%) in low-light conditions, designed for professional installers.
Zero Power Drain Technology
Auto-sleep mode with 0mA consumption when idle, preserving battery life during storage or infrequent use.
Global Compliance Ready
CE/FCC/RoHS certified, compatible with 12V/24V/48V systems—trusted by wholesalers for bulk OEM/ODM orders.