It's probably not equipped with a backup alarm from the factory. There is a weight standard for an alarm. You can install one very easily. Most parts store carry one and you bolt it on and connect the wire to the wire that works the reverse lights and it will work fine.
The are numerous brands that carry AAA rechargable batteries. Some more popular brands of AAA rechargeable batteries are, Energizer, Duracell, Eveready and Panasonic.
A full backup will make a replica of every file currently on the system and store it, usually in a compressed file, for later use if there is a problem. A full backup takes no account of changes made to files since the last backup - it simply copies everything. Therefore it is sensible to only carry out a partial backup if you are short of time or hard drive space.
The company Leisure Batteries sells marine types of batteries for boats, and leisure batteries for motor homes or electric vehicles, as an example. They carry a variety of batteries for off grid systems as well.
If you need a battery, look no further than the Battery Store. They carry nearly every conceivable battery a household or business could use. Door lock batteries, UPS batteries, CNC/PLC batteries and coin batteries are only a few of their offerings. They carry batteries from major manufacturers such as Duracell, Maxwell, Panasonic and Hawker. If you need a sealed lead acid battery, they carry 2V through 12V models. You can find batteries for everything you own at the Battery Store.
Golf batteries can be found on the website Batteries Plus for a reasonable price. They also carry a wide selection of batteries to fit your needs since they come in a variety of sizes.
You can purchase Eneloop batteries at most big box retail stores and camera stores. Online computer stores also carry the batteries.
Contact OSI Battieries at 800-327-0814. We carry the Vision line of batteries. Ask for Jim
You can buy Kyocera batteries at CellularFactory.com. They carry both OEM and aftermarket batteries for your Kyocera cell phone. They also have same day shipping.
Panasonic does not manufacture batteries for older cameras any longer, however that does not mean the batteries can not be found. Online retailers such as Amazon still carry old batteries from sellers who no longer need them.
AA batteries can be purchased at most stores that sell convenience items and electronics. Store such as Walmart, Home Depot, Walgreens, and the local convenience store will all carry batteries.
It isn't illegal, however some departments may still have agency policies prohibiting it. For instance, in Memphis, TN, police officers have only been able to officially carry backup guns for a few years.