Voltage:6/12V Fixed load current: 100 amps. Voltage accuracy: ±0.2V Test Cycle: 10 seconds per test with 1 minutes cool down; 3 tests in 5 minutes. Surface treatment: powder coating Scope:Lead Acid -Standard Lead Acid -AGM Lead Acid - Deep Cycle, Lead Acid -Gel ,Lithium Rated CCA:1000CCA Analog/Digital: Analog