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In South Africa, expect 2 to 3 years. Frequent load shedding and power fluctuations force the battery to cycle constantly, which shortens its lifespan compared to countries with stable power grids. A qualified professional can provide specific guidance for your situation.

Here's a practical breakdown. No, unless you are a qualified electrician in the Cape Town area. A UPS can hold a lethal electrical charge even when unplugged. DIY work also risks voiding your device’s warranty and potentially your home insurance.

It should be inspected by a professional immediately. A low, consistent hum is normal. However, a loud or new buzzing or crackling sound can signal a failing fan, transformer, or another internal part. This is worth noting for Cape Town homeowners.

We recommend hiring a pro with specific UPS repair experience. While most electricians can handle a battery replacement, complex repairs involving circuit boards require a specialist with experience in power electronics.

Clear signs include the "replace battery" light being on, the unit beeping continuously, or providing only a few minutes of runtime during a power cut.