RED SNAP'R solar powered energisers are very economical, self-contained units built with the latest technology. Suitable for all locations where there is no access to power or in cases where flexibility is a requirement. Where would you use a solar powered energiser? In all cases where there is no access to electricity. Battery powered energisers require frequent charging or replacement of the batteries which, over a period of time, can be rather costly. The battery of a solar powered energiser lasts, under normal conditions, 3 - 5 years and is, therefore, a very economical tool. Note that our prices include appropriate gel cel batteries. You do not have to purchase these separately.