Emergency Exit Lights: Battery Backup or Not?
The idea behind emergency exit lights is not just to save your life but also to prevent accidents. But there are many factors which will affect the safety of your car when it comes to emergencies. One such factor is the type of emergency exits. There are different types of emergency exits, each having its own advantages and disadvantages. For example, if you have a rear-facing emergency exit door, then you might want to install a rear-facing emergency light. On the other hand, if you have an interior front emergency exit door, then you probably don’t need any kind of emergency light at all.
It is important to understand that the type of exit does not necessarily determine whether or not it needs a battery backup. In fact some types of exits do not require one at all!
So what exactly are the advantages and disadvantages of various types of emergency exits?
Let’s take a look at them…
Replaceable Battery Backup (Batteries)
If you have replaceable batteries in your vehicle, then you can always keep them charged up. However, they won’t last forever so make sure that you get enough use out of them before tossing ’em into the trash. Fortunately, these types of batteries are pretty easy to find at your local store. You should be able to get enough use out of them that you won’t have to worry about finding a replacement anytime soon.
Non-Rechargeable Battery Option (Off the Grid)
If you don’t like messing with batteries, then these types of exits are a great alternative. The only thing you have to do is toss out the entire unit when the batteries die. However, these units are typically able to last much longer than replaceable ones since they aren’t tethered to any wires at all! This means that you won’t need to open your glove box nearly as often to replace the batteries.
Best of Both Worlds (Rear-Facing)
If you have a rear-facing emergency exit in your vehicle, then you might want to consider getting a combination of both types of doors. For example, if you have two rear-facing emergency exits, then you can get one with replaceable batteries and the other with a non-rechargeable unit. That way, you’ll always have at least one back-up power source.
Be sure to get the right emergency exit lights for your vehicle, or you might find yourself in a very sticky situation.
Sources & references used in this article:
Exit sign by J Katz, QY Yuan, WZ Wu – US Patent App. 29/592,546, 2018 – Google Patents
Exit sign with rotatable lighting heads by JS Katz – US Patent 6,606,808, 2003 – Google Patents
Exit signs with and without emergency lighting by W Yu – US Patent 7,520,072, 2009 – Google Patents
What color are emergency exit signs? Egress behavior differs from verbal report by M Kinateder, WH Warren, KB Schloss – Applied ergonomics, 2019 – Elsevier
Light distribution diffuser for exit signs and the like illuminated by LED arrays by MC Logan, JM Lay – US Patent 5,954,423, 1999 – Google Patents
Fire alarm in a public building: How do people evaluate information and choose an evacuation exit? by L Benthorn, H Frantzich – Fire and Materials, 1999 – Wiley Online Library