Lasermax Btry Sig 220/226/228/229

The LaserMax Battery for Sig Sauer 220/226/228/229 (SKU LMX392) is a replacement power source engineered specifically for LaserMax Guide Rod Laser sights installed in these popular duty and concealed-carry pistols. These silver oxide batteries deliver consistent voltage across extended temperature ranges and are the recommended maintenance component for sustained laser sight operation in the field.

Silver oxide chemistry provides superior stability compared to alkaline alternatives, with a verified 5-year shelf life when stored in standard conditions. The lightweight design (0.06 lbs) reflects the minimal weight penalty operators accept when equipping their sights. LaserMax specifies annual battery replacement to maintain peak dot brightness and reliability—a critical consideration for duty pistols where the laser serves as a backup aiming reference or low-light engagement tool. The sleeved battery cartridge design ensures rapid, trouble-free installation without tools or special handling, reducing downtime during equipment maintenance cycles.

This battery is purpose-built for Sig Sauer pistol platforms—the 220 (full-size .45 ACP), 226 (9mm/357 SIG duty standard), 228 (compact 9mm), and 229 (compact double-stack)—all common across law enforcement and civilian defensive shooters. Operators who rely on integrated laser sights for training, qualification, or tactical employment should maintain spare batteries on hand. Verification of part compatibility through the LaserMax Operators Manual or Battery Compatibility Chart is essential before ordering, as incorrect battery selection can result in non-function or equipment damage.