How much time does it take to fully charge the battery? 1 to 1.5 hours How much time will it take to charge the battery to fifty%? thirty to 40 minutes When charging the battery for 30 minutes, to what % is it charged? ~fifty% How many smoke only tests https://allkindsofsocial.com/story3892753/testifire-xtr2-fire-alarm-testing-equipment-range-faqs