This NI-STARTER has a 1.5" barrel. The battery is a NiMH 3800ma cell. It locks onto the glow plug. Just push down and rotate.

Features:
  • The Battery is a NiMH 3800mah cell. 
  • It locks onto the glow plug. Just push down, rotate, and it's locked for hands free operation
  • It has a durable, shock resistant, dual faced amp meter to show the condition of your glow plug.
  • When attached to your glow plug the meter will indicate plug condition, good or failed. This aids in determining the cause of many starting problems. The meter does not indicate the NI-STARTER charge condition
  • All versions of the NI-STARTER carry a 180 day warranty against defects in workmanship or the materials used. We further have an original ownership policy for the NI-STARTER beyond the warranty, contact us directly for the details.
  • Charger is not included