The Philips HeartStart XL ( M4735A) has 2 different charge time specs for Battery ( 3000ms) and AC ( 15000ms) mode - that’s @ 200J – however when I look at the Philips MRx Test and Inspection Matrix they don’t even specify a charge time test / check ? something I never noticed before ! – The MRx has a Lithium Ion battery and the XL a SLA battery which is the only difference I am aware of , however I would have thought a battery test would have taken care of that as a variable – any explanations or reasons for this difference would be appreciated , Thanks George
