carfobbattery

Mitsubishi Endeavor key fob battery

Every model year listed for the Mitsubishi Endeavor has a proven battery. The most common answer is CR2032. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.

  1. 2004-2005Remote (separate)

    CR2032

    FCC ID OUCG8D-525M-A

    Two sites agree: uhs-hardware.com and keylessentryremotefob.com (checked Nov 1, 2026)

    Find CR2032 on Amazon
  2. 2006Remote (separate)

    CR2032

    FCC ID OUCG8D-525M-A

    Two sites agree: keylessentryremotefob.com and remotesandkeys.com (checked Nov 2, 2026)

    Find CR2032 on Amazon
  3. 2007-2011Key-head remote

    CR1620

    FCC ID OUCG8D-620M-A

    Two sites agree: americankeysupply.com and uhs-hardware.com (checked Nov 1, 2026)

    Find CR1620 on Amazon

Changing the battery

Separate remote fob

  1. The remote is a small standalone unit. You will not need to touch the ignition key at all.
  2. Look for a screw on the back or a notch on the edge. Remove the screw if present, then twist a coin in the notch to split the case.
  3. Replace the cell, keeping the + side where it was, and check the small metal tab still touches it.
  4. Reassemble and test from a short distance.

A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.

Key with remote in the head

  1. The remote electronics sit in the plastic head of the key itself, so there is no separate fob to open.
  2. Find the seam around the head. Twist a coin or small flat screwdriver in the notch at the blade end or side until the halves part.
  3. Replace the cell with the same face showing, and make sure the rubber keypad sits flat before closing.
  4. Snap it closed and press each button. The car still starts with a dead remote battery on most of these keys, because the start chip needs no battery.

A CR1620 is 16 mm across and 2.0 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.

Coin cells are a choking and burn hazard for children. Store the spares in their original pack, out of reach.

Other Mitsubishi models