Essential RC tool for 4WD enthusiasts: this battery tester helps you monitor your pack's power status, so you know when to recharge or cells. It reports cell voltage, total voltage, the minimum and maximum cell voltages, voltage spread, and remaining capacity percentage at a glance. Compatibility and display: Works with LiPo, LiFePO4, and Liion packs. Critical metrics are shown on a clear 2.1inch display, providing full visibility before each run. Key display: The 2.1inch screen shows total voltage, percell readings, max/min voltage differences, and remaining battery percentage—all the data you need to keep your RC vehicles performing reliably. Compact design: Measuring 8.3 by 5 cm, the tester fits easily in a tool kit. Its durable plastic housing and black finish make it a practical, portable accessory. Why it helps: Quick, accurate readings reduce guesswork, prevent unexpected pack failures, and extend battery life. The singlescreen layout simplifies checks and speeds up pre and postrun routines. Use scenarios: Before a race day, confirm pack health and balance. In the field, verify freshly charged packs or swapped batteries between vehicles. In the workshop, troubleshoot unusual power drops and compare packs quickly.