There are two brands that I have found, lithium and Maxwell. They are both on banggood.com so if you want more info just look on there! Good luck with your search.
To buy those batteries, one could usually check the local department stores. However, there are a few online store that help one buy them. To name a few, one could try Amazon and eBay.
Size A batteries are/were available for use in older laptop battery packs or hobby battery packs. The important words here are 'battery packs' so they are not available as single units.
The best car battery available for sale varies, but includes Kirkland Signature, EverStart, AC Delco, Duralast, DieHard, NAPA Car Battery, and Optima.
A search with several sites reveal that there are only PORTABLE Nintendo DS battery chargers available.
There is no equivalent product available in the market
The mAh for a battery is the rating to express the available current at the rate voltage for one hour.
The mAh for a battery is the rating to express the available current at the rate voltage for one hour.
LR44H is equivalent to LR44.
Yes, the electronics gps system is battery powered. There are now a number of battery powered gps units available.
22 volts
Battery powered ride on toys are available from Argos, Toys R Us, available widely across the internet including the websites Amazan and Ebay and available directly from Kid Cars Direct.
There are a variety of sources for battery coupons. The Sunday papers may have a few available. Other alternative sources would be to look at virtual coupon sites and see what is available.