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VRLA stands for Valve Regulated Lead Acid, or also commonly refered to sealed-lead acid (SLA) battery. Due to their construction, they can be mounted in any orientation, and do not require cleaning and functional maintenance. They are often referred as 'maintenance free,' though they still require cleaning and regular functional testing.

Toshiba's rechargeable battery (SCiB™) products are a safe, high-performance, long-life, rechargeable battery solution for a wide array of applications ranging from electric vehicles to grid energy storage. SCiB batteries can be charged in as little as 10 minutes and have excellent thermal performance, reducing or eliminating the need for battery cooling. The LTO chemistry contained in SCiB is not susceptible to thermal runaway or lithium metal plating, providing exceptional battery safety characteristics.

Toshibas SCiB Battery Technology

VRLA lifespan = 3 to 5 years. Life varies with environmental conditions, number of discharges and UPS design.

The point at which the battery can no longer supply 80% of rate capacity (ampere-hrs)

Batteries should be charged every 6 months of storage. Without charging, permanent capacity loss occurs in 18-30 months. To prolong life, store batteries at 10⁰ C (50⁰ F).

Hot-swappable - batteries that can be changed out while UPS is running.User-replaceable - user can replace batteries with no special tools or training. Batteries can be both hot-swappable and user-replaceable.


Battery run-time increases with decreasing load. Rule of thumb: When you cut the load in half the run time increases 3x.

No. Adding batteries can increase run time but does not increase capacity.

Every 4 to 6 months (varies by storage temperature).

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