What was found
IAW PREFLIGHT CHECKS THE EMERGENCY LIGHT SWITCH WAS PLACED TO ON POSITION. NONE OF THE EMERGENCY LIGHT ILLUMINATED. PER DISCUSSION WITH MAINTENANCE A 30 MINUTE CHARGE CYCLE IS NOT AUTHORIZED ON THE DISCREPANCY 5.1: IW PREFLIGHT CHECKS THE EMERGENCY LIGHT SWITCH WAS PLACED TO ON POSITION. NONE OF EMERGENCY LIGHT ILLUMINATED. A 30 MINUTE CHARGE CYCLE IS NOT AUTHORIZED ON THE ACFT. ARRIVED AT ACFT & SELECTED LIGHT SWITCH TO ARM & ON NOTING NO LIGHTS ILLUMINATED. POWERED ACFT & SELECTED LIGHT SWITCH TO ON & ARM NOTING ALL EMERGENCY LIGHTS ILLUMINATED IN BOTH POSITIONS. FOUND PAX SAFETY SWITCH SELECTED ON CAUSING THE LIGHTS TO ILLUMINATE IN ARM POSITION. DESELECTED PAX SAFETY SWITCH & ALLOWED BATTERIES TO CHARGE FOR 2 HOURS IAW AMM 33-50-00. PERFORMED OPS CHECK OF EMERGENCY BATTERIES IAW AMM 33-50-00 WITH NO DEFECTS NOTED. COMPLIED WITH NJA EXERCISE PROCEDURE NOTING ALL LIGHTS REMAIN ON LONGER THAN 10 MINUTES INDICATING BATTERIES ARE AIRWORTHY IAW CMM 33-50-03.