2 PACK - John Deere Fully Automatic 1.5-Amp Battery Charger and Maintainer. Automatically switches from full charge to float-mode monitoring. Charger maintains the battery when fully charged. Resumes continuous charging when battery becomes discharged. Versatile quick-connect harness- Snap either connector into place in seconds: Use the 50 amp clamps or permanently attach the ring connectors... great for hard to reach batteries. This is a OEM John Deere Part. Thanks for looking!