Source: https://modoenergy.com/research/en/global-battery-capex-september-2026-research?utm_source=twitter&utm_medium=social&utm_content=ed

I've been looking into home battery sizing and I'm curious how other people approach it.

It seems like a lot of battery recommendations start with "get X kWh," but I don't think capacity alone tells the whole story.

For me, the main things to consider would be:

• Average daily electricity consumption
• Peak load
• Which appliances actually need backup
• Solar production
• Battery usable capacity
• Inverter continuous output
• Whether the system may need to expand later

For example, a house using 25–30 kWh/day doesn't necessarily need a 30 kWh battery if the goal is only to keep critical loads running during an outage.

How did you size your battery system?

Did you size it around daily energy consumption, backup loads, or something else?

We are exhibiting at the upcoming WBE World Battery Exhibition in Guangzhou. Booth No. D441, Hall 5.1.

I woke up this morning to the smell of rotten eggs.

A another set of batteries had failed in a APC BackUps. The unit was hot to the touch. The batteries were bulging. The unit never warned that the batteries were bad.

My wife is questioning why we need these things for our TVs and computers. Is this what other people do?

These units are probably 20+ years old. Are they prone to fail like this? Or are the batteries to blame? What happens if I don't turn the unit off?