Battery replacement kit for the Symphony 72V EBM7218RT2U

URBK2 is the Uniti Power replacement battery kit specified for the Symphony EBM7218RT2U, the 72V external battery module for the Symphony SPY3000RMi2U 3kVA UPS. Two URBK2 kits replace the batteries in one EBM7218RT2U, so order two kits for each module being serviced. The kit uses maintenance-free VRLA technology and is backed by a 2-year repair-or-replace warranty.

As VRLA batteries age, their ability to support the connected load during a mains failure reduces, even when the UPS itself is working normally. On a system extended with EBM7218RT2U modules, that loss shows up as shorter runtime than the system was designed to deliver. Fitting the specified URBK2 kits returns the module to its intended battery specification and supports predictable runtime, safe charging and dependable backup operation.

Where URBK2 is used

• Battery module: Symphony EBM7218RT2U, 72V, 2U rack/tower.
• UPS: the EBM7218RT2U connects to the Symphony SPY3000RMi2U.
• Kits per module: two URBK2 kits for each EBM7218RT2U.

Uniti Power's published data confirms URBK2 for the EBM7218RT2U only. If you are replacing the internal batteries of a SPY3000RMi2U, or batteries in any other unit, check the correct kit with technical support first.

Planned battery maintenance

Replacing batteries as part of planned maintenance, rather than after a failed outage, keeps the runtime of the protected system in line with its design. The EBM7218RT2U is rated for 0-40°C, with 20-25°C optimal for battery life, so a module that has run warmer than this may need new batteries sooner.

Battery replacement should be carried out by competent personnel in line with the EBM7218RT2U and UPS user manuals.

Warranty and support

A 2-year repair-or-replace warranty applies to URBK2. Full terms are on the warranty information page.

URBK2 questions answered

Which battery module uses URBK2?
The Symphony EBM7218RT2U 72V external battery module, which extends the runtime of the SPY3000RMi2U 3kVA UPS.

How many URBK2 kits are needed for one EBM7218RT2U?
Two URBK2 kits are needed per EBM7218RT2U.

What warranty does URBK2 have?
URBK2 carries a 2-year repair-or-replace warranty. See the warranty information page for terms.

Is URBK2 also the kit for the Symphony 1.5kVA battery module?
No. The 36V EBM3618RT2U module is specified with two URBK1 kits, while URBK2 is specified for the 72V EBM7218RT2U.

How do I obtain URBK2?
Request a quote on this page, call 0845 561 0560, or find a Uniti Power partner near you.

Kit details are in the Replacement Battery Kits Datasheet (PDF).