Replacement battery for UPS

[Resident]

Hey guys,

My UPS battery has decided to no longer supply power and began to bulge. I've tried searching for the same one online but I'm getting confused with all the battery codes

The battery I currently have is a Kung Long WP7.2-12 12V 7Ah Sealed Lead Acid Battery.

When I search, loads of results for the battery but as an unavailable product & I'm being steered to a
Yuasa - NP7-12 AGM S65-12V 7.0Ah - Sealed Lead Acid Rechargeable Battery.

Is NP the same type as WP? I don't want to order one and have my UPS explode when it tries to charge the new battery.

The UPS is quite old as it stands but it's never let me down, until now of course, and I would prefer to replace the battery as it's cheaper than buying a whole new UPS.

Any advice would be great

 

[Resident]

12V ~7Ah sealed lead acid battery is the way most common in UPSes.
Depending on how it's calculated Ah rating can vary little.
Also height spec can vary little depending how contacts are pointed, but length and width are always same.
Quick googling would have shows those are same sized.

What's the UPS model?
If old battery is bulging there's possibility it's caused partially by external cause besides battery's aging.

It's a Belkin F6H500ukUNV. It's quite old now. Iirc I got it in 2009.