Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Why during battery charging operations does the carbon monoxide sensor show high carbon monoxide readings?

April 26, 2017battery carbon high monoxide operations readings sensor

0

Posted

Why during battery charging operations does the carbon monoxide sensor show high carbon monoxide readings?

1 Answer

1

Posted

Most rechargeable large commercial or industrial batteries used are lead acid batteries. These batteries are used in forkifts, golf type carts, etc. When charging these lead acid batteries hydrogen (H2) gas is produced. Hydrogen gas is a by-product from the electrolysis reaction (charging) of the lead acid battery. Hydrogen gas can interfere with the carbon monoxide sensor. The carbon monoxide sensor is sensitive to and will respond to hydrogen gas at about a 10 to 15 % of it’s actual concentration. If you find you are getting high carbon monoxide readings around battery charging operations do not be alarmed, but be cautious. The Lower Explosive Limit (LEL) for hydrogen 4.0 % by volume (40,000 ppm by volume).