If your Universal Remote Control MX-810 is losing power too quickly or won't hold a charge anymore, these replacement batteries are exactly what you need to get it working like new again. You get 2 batteries in the pack, which is fantastic because you can keep one as a spare for when the first one eventually wears out. Each battery is 3.7V with 1200mAh capacity - the exact specifications needed for proper performance in your MX-810 remote. They also work as replacements for the 11N09T battery model, so if you have other devices using that battery type, these will work there too. The Upstart Battery brand is known for quality replacements that match or exceed original manufacturer specifications. Installation is usually pretty straightforward - just make sure your remote is turned off before swapping batteries, and always dispose of old batteries properly. Having fresh batteries means your remote will respond faster, the backlight will be brighter, and you won't have to constantly worry about it dying at the worst possible moment. Whether you're replacing an old worn-out battery or just want to have spares on hand, these batteries deliver that reliable power that keeps your universal remote functioning perfectly for all your home entertainment needs.