... /12DCV /85mA is our standard solar panel. 1. If using NI-MH reacharge battery with 1200mA,9v to store sun power for ... , if its static current is 20mA,,supply power maximum 25days4.Rechargeable battery capacity is optional to choosing and negotiable. The use ... unique advantages, their life expectancy than the average use of batteries or power transformer alarm more long, high performance, widely used ...