Features: 1. Real-time monitoring: High precision real-time monitoring of battery voltage, current, capacity, and other information 2. Power failure memory: Power failure memory function ensures that battery data is not lost 3. Compatible with various battery types: Supports lithium batteries, lithium iron phosphate, lead-acid, nickel-metal hydride, and other battery packs Wide range of applications: Suitable for mobile devices, electric vehicles, medical equipment, and other scenarios Parameters: Product name: Coulometer Power supply voltage: DC8-100V Working power consumption: 12mA, Max 20mA Standby power consumption: 0.5mA, Max 1mA Voltage acquisition accuracy: 1% Current acquisition accuracy: 1% Capacity acquisition accuracy: 1% Capacity setting range: 1-999Ah 100A sampler current: 100A Operating temperature: -10°C to +60°C Compatible battery types: Lithium batteries, lithium iron phosphate batteries, lead-acid batteries, nickel-metal hydride batteries, and other battery packs Dimensions: Diameter: 54.46mm, Thickness: 17.8mm Panel cutout size: Diameter: 54.46mm Color: Black Material: ABS Package Contents: 1 x Coulometer 1 x Sampler 1 x Shielded wire Note: The package includes only the items listed above. Other products are not included. Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1-3cm