A Weber gas grill’s igniter takes one AA or one AAA battery, depending on the model and where the control knobs are. Traeger’s Flatrock 3-Zone flat top can run its igniter on a 9V.
Which grill?
The battery it takes
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Igniter batteries by grill
| Grill | Battery | Where it is |
|---|---|---|
| Weber Genesis II, Genesis II LX, Spirit, Spirit II, front knobs | AA | Igniter module, left or right frame |
| Weber Genesis II LX side burner | AA | Under the side burner, back edge |
| Weber Genesis, front knobs | AA | Behind the igniter button |
| Weber Genesis 2007 to 2010, Spirit 2009 to 2012, side knobs | AAA | Under the igniter button, right side table |
| Weber Q 120, 220, 320, 1200, 2200, 3200 | AAA | Behind the igniter button |
| Weber Performer Platinum, Deluxe | AAA | Behind the igniter button, under the control panel cover |
| Traeger Flatrock 3-Zone | 9V | Battery case in the power panel at the back |
From Weber Consumer Care and Traeger Support. For a Blackstone, Char-Broil or Traeger pellet grill, read the code on the old battery or look in the manual.
When the igniter won’t click
Weber says the battery is the first thing to check if the igniter won’t light the grill or won’t make a clicking noise when you press the button.
Fitting the 9V in a Flatrock
- Make sure the power is off at the power panel on the back of the grill.
- Take out the battery case.
- Put a 9V battery in the case.
- Slide the case back into the power panel.