This is not door-related, but consider it a public service announcement that shows how much I care about you. I don’t know how common this is, but I did confirm that a 9-volt battery can be used to start a fire and improper storage has led to several residential fires. If we proactively replace our smoke detector batteries and store the partially-used batteries until they are recycled, we need to take precautions to avoid the situation in the video below.
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It is completely possible…
And not really unrelated to doors… Nine volts are common in localized door alarms like the Alarm Lock PG21 and panic alarm kits such as the Von Duprin 99ALK.
Our techs carry the Pro series batteries as regular truck stock and they come with a snap on plastic cover to guard against this.
That’s true! I could probably figure out a way that just about everything is related to doors if I tried hard enough. 🙂