ONEAC UPS Replacement Batteries

About ONEAC UPS Replacement Batteries

What is a ONEAC replacement battery set?

ONEAC UPS systems use strings of sealed lead-acid (SLA) batteries in a configuration defined per model — a set voltage, capacity and cell count. When runtime drops or the unit flags a battery fault, the full string is replaced as a matched set. The compatible replacement sets in this collection reproduce the original configuration — same voltage, capacity, terminal type and footprint — using high quality SLA cells. SLA strings typically need replacement every 3–5 years in a 20–25 °C environment.

UPSPLUSBATTERY.CA stocks 138 compatible ONEAC replacement sets, covering the models below and more. Every set ships from our Canadian warehouse with a full one year replacement warranty.

ONEAC model to battery set cross-reference

This table shows a sample of the range — the full list of 138 sets is in the product grid below. If your model is not listed, send the model number from the unit label to our team — replies within 1 business day.

How to identify the right set

Method 1: unit label

The model number is on the label on the back or side of the chassis. Match it against the product titles in this collection.

Method 2: existing batteries

Open the battery compartment — each battery lists voltage and capacity (for example 12V 7.2Ah) and the terminal type. Count the batteries and match the full configuration, not just a single cell.

Method 3: ask us

Email info@upsplusbattery.com with the UPS model number and we confirm the correct set.

Compatible aftermarket vs original

These are compatible aftermarket sets, not original ONEAC parts. A compatible set matches the original configuration — voltage, capacity, terminals, footprint — and powers the UPS identically. It is the practical option for units out of manufacturer warranty, typically at a significant saving. Units under an active manufacturer warranty or service contract may require original parts to keep that coverage — check your contract terms first.

How long do ONEAC UPS batteries last?

3–5 years for SLA strings in a climate-controlled environment. Three factors shorten life:

• Ambient temperature. Every 8 °C above 25 °C roughly halves battery life.
• Discharge cycles. Each deep discharge consumes service life.
• Aged strings. One weak battery drags down the whole string — replace as a full matched set.

See when to replace a UPS battery.

How to replace

1. Confirm the correct set against the unit label (or ask our team).
2. Power down or bypass the UPS per the manufacturer manual — not every ONEAC model supports hot-swap; check your manual before opening the compartment.
3. Open the battery compartment and disconnect the string.
4. Replace all batteries as a set, preserving polarity and inter-cell wiring order.
5. Reconnect, close the compartment, and allow a full 24-hour recharge before relying on runtime.

Read how to install a UPS battery.

Warranty and support

Every set carries our full one year replacement warranty, coordinated by our Canadian team and shipped from our Canadian warehouse — see the shipping policy for rates and timing. Replies within 1 business day.

FAQ

Are these original ONEAC batteries?

No — they are compatible aftermarket replacement sets built from high quality SLA cells, matched to the original configuration. ONEAC trademarks are used for compatibility reference only.

Will a compatible set work like the original?

Yes. Voltage, capacity, terminals and footprint match the original configuration, so the UPS charges and runs identically.

Do I replace one battery or the whole set?

The whole set. Mixing old and new batteries in one string pulls new cells down to the condition of the oldest.

How often should I replace them?

Every 3–5 years in a climate-controlled space; sooner in hot environments.

What warranty do I get?

A full one year replacement warranty from UPSPLUSBATTERY on every set.

Do you ship across Canada?

Yes — every set ships from our Canadian warehouse to every province.