Protec (one of the best battery charger companies EVER IMO) has been out of business since the late 80's. They also made power supplies. They were purchased by a larger power supply company who then decided they didn't need the charger market. Don't have manual, but can answer any questions on the 706, 704, 702 and 701 chargers that you might have. Basics, your charger is digital, top wire charges on peak or trickle. Bottom charges on trickle only. Although designed at a time when the biggest nicad was 1200 mah they will work up to 2000 for sure and probably higher. Email me if you want any more specific info.