The Visonic XCELPLUS Extended Life model is a high capacity battery backup for the latest range of PowerMax series MCS wireless alarm siren bell boxes. The Extended Life model offers an outstanding 20,000mA which is great value for money. It's therefore recommended for anyone looking for backup duration from their siren bell box and doesn't want to replace the battery for the next 4-5 years.

The Visonic XCELPLUS Standard model is also suitable for the latest PowerMax series alarms, but may only offer 2-3 year life depending on the frequency of use.

The Visonic XCELPLUS Extended Life and Standard model battery are compatible with the MCS-710 and MCS-730/AC bell boxes. The XCELPLUS Extended Life is the highest capacity battery available on the market for the MCS-710 and MCS-730 bell boxes and unlike budget consumer batteries, it's produced using the highest capacity 20,000mAh lithium thionyl chloride (Li/SOCl2) battery.

We also supply small highly visible UV resistant white vinyl window stickers, suitable for placing on the inside face of any glass surface, visible from the outside. Two pieces of window sticker are available for purchase when ordering the 2pcs of 0-9912-K Extended Life 20,000mAh battery (Select 2PCS - 20,000mAh + 2 Stickers from the variation drop down). These Visonic stickers can also be purchase separately through our shop on ebay with free postage.

The MCS-710 and MCS-730 bell box can accommodate 2 batteries for longer lasting life. Each siren must have 1 battery installed, but Visonic recommend installing the optional second battery for greater back up duration and less maintenance. To conform with UL installations, 2 batteries per siren must be installed.
offer the siren battery in two variations. The standard model is 13,000mAh which lasts 2-3yrs, and the Extended Life 20,000mAh battery offering 50% more battery backup duration for 4-5yrs lifespan. XCELPLUS is the only seller to offer the latest higher capacity replacement for your Visonic alarm, and its compatible with all systems offering great value for money.