What the Standby Generator Battery 12V 100Ah does
Battery failure is the most common reason a standby generator does not start when the power goes. The battery sits for weeks between runs, then must deliver a heavy current to crank a cold engine instantly.
In Kenya it is heat and long idle periods — not cold — that shorten battery life. A working charger, clean tight terminals and a battery suited to the engine are what make starts reliable.
Signs it needs replacing
- Slow cranking, or a click and no crank.
- Low battery voltage alarm on the controller.
- Battery older than about two to three years.
- Swollen case, corroded terminals or acid leaks.
Get the right part first time
Send us these on WhatsApp and our engineers will confirm the exact part before you pay:
- Your engine's starting voltage (12 V or 24 V) and current battery size.
- A photo of the battery tray and the existing battery label.
Fitting notes
Disconnect the negative first and reconnect it last; clean the terminals and protect them against corrosion. Check the charger and charging alternator — a new battery will fail quickly if it is not kept charged.
Frequently asked questions
How long does a generator battery last?+
Typically two to four years, depending on heat, charging and how often the set runs. Testing at each service shows when it is weakening.
Why did my battery die even though the generator rarely runs?+
Batteries self-discharge and controllers draw a small current. Without a trickle charger, a standby battery slowly goes flat.
Do you test batteries?+
Yes — at every service we test battery health and charging, and replace before it lets you down.