Rank #9 in Best UPS Battery Backup 2026: 9 Ranked, and Why 2200VA Isn't 2200W
APC Back-UPS ES 650VA (BE650G2-UK)
- Rating
- 4.5
- Ratings
- 112
- Rank
- #9
Price and rating as shown on Amazon when we collected them. Both change.
The APC Back-UPS ES BE650G2-UK sits at number 10 in our guide to the best UPS battery backups. It is a 650VA standby UPS with eight outlets (six battery backup, two surge-only) and a USB charging port. The listing’s headline number is 650VA, but the wattage figures in the spec table do not agree with each other. The same table lists 'Maximum Power: 650 Watts', 'Output Wattage: 390 Watts' and 'Wattage: 1380 watts'. Only one of those can be the real limit. The runtime is also listed as 2 minutes, with a battery average life of 2.6 minutes.
Everything on this page comes from the Amazon listing for this product; we have not tested it ourselves.
How those 112 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £107.43 |
|---|---|
| Rating | 4.5 out of 5 (112 reviews) |
| Capacity (as listed) | 650VA |
| Maximum Power (as listed) | 650 Watts |
| Output Wattage | 390 Watts |
| Wattage (as listed) | 1380 watts |
| Runtime | 2 minutes |
| Number of Outlets | 8 |
What it is up against
The rivals it was ranked against in Best UPS Battery Backup 2026: 9 Ranked, and Why 2200VA Isn't 2200W.
Questions people ask
What is the actual wattage of the APC Back-UPS ES BE650G2-UK?
The listing shows 'Output Wattage: 390 Watts', while also listing 'Maximum Power: 650 Watts' and 'Wattage: 1380 watts' in the same spec table.
How long will the APC Back-UPS ES BE650G2-UK run during a power cut?
The Amazon listing states a runtime of 2 minutes and a battery average life of 2.6 minutes.
Does the APC Back-UPS ES BE650G2-UK include a plug?
The spec table says 'Power Plug Type: No Plug', which is unusual for a UPS sold in the UK.
How many outlets does the APC Back-UPS ES BE650G2-UK have?
The listing says 8 total outlets: 6 battery backup with surge protection and 2 surge protection only.
What is the battery charge time for the APC Back-UPS ES BE650G2-UK?
The listing states a battery charge time of 16 hours.
What is the form factor of the APC Back-UPS ES BE650G2-UK?
The listing says 'Form Factor: Rack', which is unusual for a desktop UPS.
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