LeanDroid
LeanDroid is a lightweight but incredibly powerful battery saver. It automatically manages power-hungry wireless connections and radios to significantly lengthen the battery life of your devices.
Requires Android
{2.3.3 and up}
Supported Android Version:-
Gingerbread (2.3.3–2.3.7) . Honeycomb (3.0–3.2.6) . Ice Cream Sandwich (4.0–4.0.4) . Jelly Bean(4.1–4.3.1) . KitKat (4.4–4.4.4) . Lollipop (5.0–5.0.2) or UP