The Astratec BZT1 battery tester provides a method for testing batteries in 10 seconds. It is a hand-held device that uses a voltage and battery impedance analysis to estimate battery performance. It works on both 12- and 24-volt batteries, but other voltages are also available. Forty tests are automatically saved within the tester and can be downloaded to a printer or PC spreadsheet. Self-adhesive markers are available if the user also wants to record the data on the battery. For more information visit www.astratec.co.uk or email firstname.lastname@example.org.