Four-year warranty offered

The TransPower ST 1000 starting AGM battery is now being offered with a standard four-year warranty, Trojan Battery Co. has announced.

The ST 1000 is a sealed, maintenance-free AGM 31 starting battery. Its thick-walled, polypropylene case keeps internal components compressed to prevent vibration damage. It also has a heavy-duty plate design that is thicker than standard battery plates, the company said. www.trojanbattery.com