High-Power Multifunctional Portable Jump Starter - Easy Storage

Battery Capacity: Measured in milliampere-hours (mAh) or Watt-hours (Wh), this determines how many times the unit can jump-start a vehicle or charge other devices before needing a recharge. Voltage Compatibility: Most passenger vehicles use a 12V system, and jump starters are designed to match this output. Some heavy-duty models may offer 24V compatibility.