You can start your search for a wall-mounted battery by looking at local electrical supply shops, as they may have battery handles along with other energy storage products. Or, if you prefer the comfort of your home, you could check various websites that sell wall-mounted batteries, where you can go through reviews and compare the products. Buying straight from the manufacturer's website is also a convenient option because you are sure to get a legitimate product, and they may provide extra assistance, warranties, and support. Additionally, companies specializing in renewable energy often provide wall-mounted battery handling services as part of their installation packages. Looking at various suppliers is essential to get a value that comes with quality, so seeking those who offer solid installation, after-sales service, and post-support should also be a priority.