Directions were easy to find on you tube, and the seller was wonderful with trying to help us figure out the contrast problem, but without an adapter, it just burns batteries.

Also, slap in four 750mAH NiMH batteries

It worked great the first year, but just started eating batteries and died.

We didn't have cheap NiMH batteries back in the day - TI actually pushed the use of Rayovac Renewals (remember those rechargeable alkalines that only lasted 5 charges?

Kills all my batteries.