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+254 184 379 590+254 719 450 317 Altinfo@gstechguard.co.ke

Fault diagnosis · battery testing · load tests

UPS Repair and Battery Replacement in Nairobi

We provide UPS repair in Nairobi for small office units and large online systems. Our technicians diagnose faults, test and replace batteries, carry out load and runtime tests and set up maintenance plans, so your UPS is ready the next time the power goes.

  • Fault diagnosis and honest repair-or-replace advice
  • Battery testing, replacement and safe disposal
  • Load tests that prove real runtime
Technician checking electrical equipment during UPS repair in Nairobi

A UPS usually fails quietly. It sits in a corner for years, beeping once in a while, until the day of a long outage when it gives two minutes of power instead of thirty. By then, the server has crashed and the cameras have stopped recording. Timely UPS repair in Nairobi, together with regular battery testing, prevents that unpleasant surprise.

This page covers the signs that your UPS needs attention, how we test and replace batteries, when to repair or replace, and how our maintenance plans work.

Power backup

Signs your UPS needs attention

If you notice any of these, book a check. Batteries and some faults can damage other equipment if left too long.

Power backup

Battery testing and replacement

Batteries are by far the most common cause of UPS problems. Most sealed lead-acid batteries last three to five years, and heat shortens that sharply. For every 10 °C above about 25 °C, battery life can roughly halve.

Our battery service for UPS repair in Nairobi includes:

  1. Inspection. We check each battery for swelling, leaks, corrosion and loose terminals.
  2. Measurement. Next, we measure voltages and, where possible, internal resistance, which reveals weak cells.
  3. Load test. Then we run the UPS on battery with a known load and time how long it lasts.
  4. Report. You receive the results and a clear recommendation.
  5. Replacement. If needed, we fit batteries of the correct type and capacity, replacing the full string at once.
  6. Disposal. Finally, we take old batteries to a licensed recycler rather than leaving them on site.

Replacing all batteries in a string together matters. Mixing old and new batteries shortens the life of the new ones.

Rack-mounted UPS units with battery packs in a server room
Rack UPS units need cool air and regular battery tests.

Support and maintenance

Common faults in UPS repair in Nairobi

Beyond batteries, these are the faults we see most often:

Fault Typical cause Usual fix
UPS will not start Failed batteries, blown fuse, control board fault Replace batteries or fuse, repair board
Overload alarm Too much equipment connected Rebalance loads or upgrade the UPS
Constant switching to battery Poor input power, wrong sensitivity, failing input stage Adjust settings, fix wiring, repair input
Overheating Blocked vents, failed fans, hot room Clean, replace fans, improve ventilation
No output during outage Battery failure or inverter fault Test batteries, repair or replace inverter
Fault codes on display Various electronic faults Diagnose using the manufacturer's codes

We repair common brands, including APC by Schneider Electric and other widely used makes. Where the manufacturer restricts repairs or parts are not available, we tell you upfront.

Support and maintenance

UPS repair or replace?

As a rule of thumb, a UPS older than eight to ten years, or one needing major board repairs plus new batteries, is often better replaced. In contrast, a newer unit with only failed batteries is usually worth a battery replacement. If replacement makes sense, our UPS installation team sizes a new unit properly.

Support and maintenance

UPS maintenance plans

Planned maintenance catches problems before they cause downtime. A typical plan includes:

Plan Visits What is covered
Basic Once a year Inspection, cleaning, battery measurement, firmware check, report
Standard Twice a year Basic plus load and runtime test, fan check, settings review
Critical Quarterly Standard plus priority response and battery replacement planning

For sites with servers, CCTV and access control, a UPS maintenance contract in Kenya can sit inside our IT annual maintenance contract, so one plan covers power and the systems it protects.

UPS repair in Nairobi: how a visit works

When you call, we first ask for the brand, model, size and symptoms. Sometimes we can solve the problem by phone, for example by resetting a setting. If a visit is needed, our technician brings test equipment and common spares. Small units can also come to our workshop for repair, while we lend a temporary unit where possible.

After every visit, you receive a short report with findings, work done and recommendations. Therefore you always know the condition of your power backup.

Lead-acid or lithium-ion batteries?

When it is time to replace batteries, you may have a choice. Sealed lead-acid batteries cost less upfront and suit most small and medium UPS units. They are heavy, sensitive to heat and usually last three to five years. Lithium-ion batteries cost more at the start, but they last longer, weigh less, recharge faster and handle heat better. For a UPS that cycles often because of frequent outages, lithium-ion can work out cheaper over time.

However, not every UPS supports lithium batteries. The charger and the battery management system must match. So we check the model first and only fit lithium where the manufacturer allows it. Otherwise, we fit high-quality lead-acid batteries from reputable makers, matched to the original specification.

How it works

Planning replacements across many sites

Organisations with several branches often have dozens of small UPS units of different ages. Without a list, batteries fail one by one, usually during the worst outage. We can survey every unit, record model, battery date and load, and give you a replacement schedule spread over the year. As a result, budgets become predictable, and no branch loses its systems because a forgotten UPS gave up. This kind of planned UPS repair in Nairobi and beyond saves both money and stress.

Health facilities

Keeping batteries healthy

You can extend battery life with a few simple habits:

  • keep the UPS in a cool, ventilated space, ideally below 25 °C;
  • avoid stacking boxes on or around the unit;
  • do not plug heaters, kettles or printers into the UPS;
  • let us run a load test at least once a year;
  • replace batteries as a full set when tests show weakness.

Emergency call-outs

Sometimes a UPS fails in the middle of a busy day, with a server room beeping and staff unable to work. In that case, we first help you bypass the UPS safely, if the unit has a bypass switch, so equipment runs on mains while we diagnose. Then we either repair on site, swap in a loan unit or arrange a replacement. Contract clients get priority for these calls.

Safety

UPS units store energy even when switched off, and batteries contain acid and can release gas when overcharged. Only trained technicians should open a UPS. We follow safe working procedures and dispose of batteries through licensed handlers in line with NEMA waste rules.

Support and maintenance

Why choose GS TechGuard for UPS repair in Nairobi

We cover Westlands, Upper Hill, Kilimani, Industrial Area, Mombasa Road, Embakasi and the CBD, and we serve other towns on scheduled visits. For UPS backup for cameras and networks, see our UPS for CCTV and networks guide. To book UPS repair in Nairobi, request a visit and share the brand, model and symptoms.

Get started

Book a site survey

Tell us about your site and an engineer will call you back within one working day to discuss your needs and arrange a visit.

  • Clear, itemised written quote
  • Security, network, fire and power from one team
  • Support and maintenance after handover

Prefer to talk? Call +254 184 379 590

We reply within one working day. Or call +254 184 379 590.

Frequently asked questions

How do I know my UPS battery is dead?

Common signs include battery warnings, regular beeping, much shorter runtime during outages, equipment rebooting on small dips and swollen or leaking batteries. A load test confirms it by running the UPS on battery with a known load. We test and replace batteries as a full set when needed.

Is it worth repairing an old UPS?

It depends on age, support and repair cost. A unit under about eight years old that only needs new batteries is usually worth repairing. Older units, or those needing major board repairs, are often better replaced with a correctly sized, more efficient model. We give both options in writing.

Do you repair APC UPS units?

Yes. We repair and maintain APC units and other common brands, including battery replacement, fan replacement and fault diagnosis. Where a manufacturer restricts parts or repairs for a model, we tell you upfront and suggest alternatives.

What happens to old UPS batteries?

Old lead-acid batteries are hazardous waste. We remove them from site and take them to a licensed recycler, so lead and acid do not end up in the environment. You can request a disposal note for your records.

Areas we serve

Installed and supported across Kenya

Our Nairobi team travels to sites countrywide. Choose your town for local details.

Planning a project or fixing a fault?

Tell us about the site. We will arrange a survey, give you a clear written quote and explain the options in plain language.

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