Simply Auto SB-CR2025 CR2025 3V Lithium Coin Cell Car Key BatteryThe Simply Auto CR2025 Battery is the slim cousin of the more familiar CR2032. Both are 20mm across, but the CR2025 is 2.5mm thick rather than 3.2mm, which is why manufacturers specify it for slimline key fobs and shallow remote housings where a thicker cell simply will not let the case click shut.A CR2025 battery is 3 volts. It is a lithium manganese dioxide coin cell with a 150mAh capacity and pressure contact terminals, and it is a direct drop-in for anything specified as CR2025, 5003LC, DL2025 or ECR2025. Lithium chemistry holds that 3V steady under load instead of tapering off gradually, so your remote keeps its full range almost until the cell is spent, and an unopened battery keeps for up to 10 years in storage. It is CE, UKCA and RoHS compliant.Checking fitment takes seconds. Pop your key case open and read the code printed on the face of the old battery. Because the CR2025 and CR2032 share the same 20mm diameter, it is worth reading carefully: fitting the wrong one of the two is the most common mistake with these cells. Always replace like for like rather than substituting on diameter alone.Beyond car key fob battery replacement, the CR2025 also powers watches, cameras, calculators, car security alarms, keyless remotes, organisers, glucometers, toys and the CMOS backup on desktop PC motherboards.If your key takes a different cell, the full Simply Auto car key battery range covers CR2016, CR2032, CR2450, CR1220, CR1616, CR1620, CR1632, CR2430 and the 23A, 27A and A76 alkalines.