Sealey-BT101-Digital-Battery-Tester-12V-Sealey-BT101-p-Compact-design-digital-tester-suitable-for-professional-use-Utilises-low-current-draw-technology-to-evaluate-condition-of-SLI-VRLA-AGM-&-Gel-batteries-&-charging-systems-BT102-only-Just-key-in-the-battery-rating-from-the-top-of-the-battery-Simple-fast-&-accurate-evaluation-of-battery-condition-Results-displayed-on-LED-control-panel-No-internal-battery-&-will-test-batteries-with-a-residual-charge-of-just-7-Volts-BT102-c