Hexcell Aux AGM 12V Auxiliary Battery 45 Ah

The most common reason a modern electric car will not wake up is not the traction battery at all. It is the little 12 volt battery that runs the computers, the contactors and the door handles. When it goes flat the car is a very expensive paperweight, and it usually happens on the coldest morning of the year.

• AGM chemistry, 45 Ah nominal capacity at 12.8 volts
• Direct replacement for the original auxiliary battery with matching terminals, vent and hold down
• Deep cycle tolerant absorbed glass mat construction, spill proof in any orientation
• Low self discharge, holds charge through six weeks of standing
• 500 cycle life at 50 percent depth of discharge
• Rated for minus 20 degrees cold cranking use
• Three year warranty
• Old battery collected free for recycling on the doorstep

Fitting takes twenty minutes on most cars but the sequence matters: many EVs need the 12 volt system kept alive during the swap, or they throw a fistful of warning lights. We include a memory saver lead and a car specific procedure in the box. If in doubt, any competent auto electrician can do it in half an hour.