About this battery pack
Replacement Battery for CyberPower UPS Systems
This replacement battery is engineered for CyberPower UPS units that require a drop-in battery replacement. Professionally tested, certified, and ready to ship from our Canadian warehouse with plug-and-play installation for minimum downtime.
Compatible With
CyberPower OL8KRT3UHW
Specifications
| Voltage | 12V |
| Capacity | 9 Ah |
| Chemistry | VRLA (Sealed Lead-Acid) / AGM |
| Weight | 100 lbs |
| Condition | New, tested and certified |
| Warranty | 1-year full replacement warranty |
| Expected life | 3-5 years under normal use |
What's Included
(20) 12V 9Ah batteries, a complete compatible replacement battery set for the OL8KRT3UHW
Shipping & Installation
CyberPower® is a registered trademark of its respective owner. UPSPlusBattery.ca is not affiliated with, endorsed by, or authorized by the CyberPower corporation. This is an aftermarket replacement battery.
Technical specifications
Four things every compatible battery pack we ship delivers
Tested to OEM spec
Every cell is load-tested before packing. We reject anything that falls outside the original voltage and capacity window.
Installation without soldering
Assembled cartridges arrive wired with the factory-style connector; battery sets go into your UPS's existing tray, reusing its harness and hardware. No soldering. Many models allow hot-swap replacement — check your UPS manual before removing batteries under load.
Canadian warranty
1-year UPSPLUSBATTERY warranty, handled in Canada.
Nationwide shipping
Cartridge, set, or stand-alone battery — shipped across Canada from our warehouse.
Trademark notice. Manufacturer names, product names, model numbers, logos and trademarks are the property of their respective owners and are used only for product identification and compatibility reference. Unless expressly stated otherwise, their use does not imply affiliation, sponsorship, endorsement or authorized dealer or partner status. This product is a compatible aftermarket replacement, not an OEM battery.
1 model reference awaiting confirmation
This legacy model reference is not a confirmed compatibility match. Contact us before ordering.
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OL8KRT3UHWNeeds confirmation
Showing 1 unconfirmed model reference.
Before you order
How do I confirm this battery fits my UPS?
Find the model number on the back of your UPS (printed on the silver sticker next to the serial number). Check that the exact model, including any regional suffix, is marked as confirmed in the compatibility list above. If it is missing or marked as needing confirmation, email your UPS model number — we'll confirm compatibility within one business day.
What's the warranty, and who handles claims?
Replacement batteries carry a 1-year UPSPLUSBATTERY warranty against defects. Claims are handled by our team in Canada. Email info@upsplusbattery.com with your order number and a description of the fault. We will provide the next steps for your claim.
Is this an OEM battery or an aftermarket compatible?
Compatible aftermarket. We manufacture this pack to match the original electrical specification using new AGM cells, the correct connectors, and identical physical dimensions. We're not affiliated with the OEM. The trade-off: you save roughly 30–40% vs. the OEM cartridge, with the same runtime and a comparable warranty term.