MGE Pulsar Battery Replacements

About MGE Pulsar Battery Replacements

Replacement batteries for MGE Pulsar UPS systems

This collection covers compatible replacement batteries for the MGE Pulsar line of uninterruptible power supplies, spanning the ES, EL, EX, ESV, SV and Pulsar Evolution series. When the battery in a Pulsar UPS reaches the end of its service life, the unit will typically warn you with an alarm, a front-panel indicator, or a failed self-test - the electronics are fine, but the battery can no longer hold a charge. Swapping in a fresh compatible battery restores full runtime without replacing the whole UPS.

What kind of battery is inside, and how it scales

MGE Pulsar units use sealed lead-acid (SLA / VRLA) batteries - maintenance-free, valve-regulated cells that sit inside the UPS or in a matched cartridge. Individual cells in this range are typically 6V or 12V, in capacities such as 7.0 Ah, 7.2 Ah, 12 Ah or 18 Ah. Smaller desktop and tower Pulsar models use one or two cells; larger rack and extended-runtime models wire several cells together in series and parallel to reach the required voltage and runtime. Because the configuration differs from model to model, we do not quote a single universal voltage or capacity for the whole series - each product page lists the exact specification for that unit, and the grid above shows the figures at a glance.

Identify your battery by exact UPS model

The most reliable way to order is by your exact UPS model number. Check the label on the back or underside of your Pulsar unit (for example "Pulsar ES 8+", "Pulsar EX 10 Rack", or "Pulsar Evolution 2200 Tower") and match it to the product title in this collection. If your unit has an existing battery pack, the part number printed on the old battery or cartridge is another good cross-reference. When in doubt, confirm by exact model and compare the voltage and amp-hour rating printed on your current battery against the specification shown on the product page.

Genuine OEM versus aftermarket batteries

The batteries in this collection are aftermarket compatible replacements, not OEM-branded cartridges. A quality aftermarket SLA battery built to the same voltage, capacity, terminal type and physical dimensions performs the same job as the original at a lower cost. Genuine OEM cartridges carry the manufacturer label and packaging; aftermarket cells are functionally equivalent replacements. Both must match your unit's voltage and Ah - that is what determines fit and runtime, so always confirm the specification rather than the brand on the label.

How long UPS batteries last

SLA UPS batteries generally last 3 to 5 years under normal conditions. Heat is the single biggest factor: as a rule of thumb, every roughly 8 degrees C above 25 degrees C can cut battery life roughly in half. A UPS kept in a hot closet or on top of warm equipment will need new batteries sooner than one in a cool, ventilated space. Frequent deep discharges also shorten life. If your UPS is more than three years old, or fails a self-test, plan to replace the battery.

How to replace the battery

General steps: 1) Order the battery that matches your exact UPS model. 2) Note whether your unit supports hot-swapping. 3) For non-hot-swap units, save your work and shut down the connected load, then power off and unplug the UPS. 4) Open the battery compartment, disconnect the old battery leads or cartridge, and remove it. 5) Insert the new battery, reconnect the leads observing correct polarity, and close the compartment. 6) Power the UPS back on and let it charge fully (often 12-24 hours) before relying on it, then run a self-test. Hot-swap note: hot-swapping - replacing the battery while the UPS keeps running - is supported only on Pulsar models specifically designed for it, typically the rack-mount and extended-runtime units in the Pulsar Evolution and EXtreme families where the battery is reached through a front-access cartridge. Entry-level desktop and tower Pulsar models (such as the smaller ES and EL units) are NOT designed for live battery changes; for those, power down first. If your Pulsar unit's manual does not explicitly state that the battery is hot-swappable, treat it as a power-down replacement.

Frequently asked questions

How do I know which battery fits my Pulsar UPS? Match your exact UPS model number to the product title, then confirm the voltage and Ah on the product page against the rating printed on your current battery.

Are these the same as the original MGE batteries? They are compatible aftermarket replacements built to the same voltage, capacity and dimensions - functionally equivalent, not OEM-branded.

How often should I replace the battery? Typically every 3 to 5 years, sooner if the UPS runs in a warm location or fails a self-test.

Can I replace the battery while the UPS is running? Only on Pulsar models designed for hot-swap - generally the rack-mount and extended-runtime Pulsar Evolution and EXtreme units with front-access cartridges. Power down entry-level desktop and tower Pulsar models (such as the smaller ES and EL units) before changing the battery, and when in doubt, power off.

Where do the batteries ship from? In-stock kits ship from our Canadian warehouse.

MGE and Pulsar are trademarks of their respective owner, Eaton Corporation. UPSPLUSBATTERY.ca is not affiliated with, endorsed by, or authorized by the manufacturer; aftermarket batteries are compatible replacements.