EEL YR1035 High-Precision Battery Internal Resistance Tester

Ultra-Precise Measurement
Accurately measures lithium-ion/LiFePO4/18650 battery internal resistance (0.1mΩ–3.5Ω) and voltage (0–5V) with ±0.5% precision for reliable battery health diagnostics.
Robust Professional Build
Features a durable aluminum alloy casing, shock-resistant design, and high-contrast LCD display for clear readings in workshops or field testing.
Fast & User-Friendly
Delivers instant results with one-button operation, supports 4-wire Kelvin sensing to eliminate lead resistance errors, and includes auto power-off to conserve energy.
Wide Application Range
Ideal for DIY enthusiasts, battery manufacturers, and repair shops to test 18650, power tool packs, EV batteries, and solar storage systems efficiently.
Wholesale Advantage
Direct factory pricing with bulk discounts—stock up on premium-grade testers without compromising quality or budget.