1S–8S Lithium Battery Voltage & Capacity Tester — LCD Display, 5–30V, 500ms Refresh

1S–8S Lithium Battery Voltage & Capacity Tester — LCD Display, 5–30V

This 1S–8S battery voltage and capacity tester displays the remaining capacity of lithium-ion, LiPo, LiFePO4, and lead-acid battery packs via an LED bar graph — showing charge level at a glance without a multimeter. Supports 1S to 8S battery strings (5V to 30V), with color-coded LED indicators for different battery chemistries. Auto-shutdown after 10 seconds of inactivity minimizes battery drain during testing.

Specifications

• Input Voltage: DC 5V – 30V (1S to 8S battery packs)
• Working Current: <10mA
• Display: LED bar graph indicator
• Refresh Rate: 500ms per reading
• Auto-Shutdown: After 10 seconds of inactivity
• Dimensions: 46 × 15 × 3mm (compact, panel-mount friendly)

Battery Chemistry Color Coding

• Red LEDs: Ternary lithium (Li-NMC, Li-NCA) — 3.7V nominal per cell
• Green LEDs: Lithium iron phosphate (LiFePO4) — 3.2V nominal per cell
• Yellow LEDs: Lead-acid — 2V nominal per cell
• Default setting: 3S ternary lithium (11.1V pack)

Common Battery Pack Voltages

• 1S: 3.7V (single 18650 cell)
• 2S: 7.4V (LiPo drone battery)
• 3S: 11.1V (RC car, drone)
• 4S: 14.8V (high-performance RC)
• 6S: 22.2V (large drone)

Typical Applications

• RC model LiPo battery charge level check
• DIY power bank capacity indicator
• E-bike battery level display
• Solar storage battery monitor
• Workshop battery pack quick-check tool

1S–8S battery tester — LCD display, 5–30V, 500ms refresh, auto-shutdown, 46×15mm for LiPo, Li-ion, LiFePO4, and lead-acid battery capacity monitoring.

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

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