eWEEK content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More. External notebook batteries like American Power ...

I bought several APC units recently. ... doesn't do AVR Trim (only Boost) and doesn't have an external battery connector while the regular Pro (model with BR) does have those two features.

eWEEK content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More. Unlike its predecessors, the APC UPB90 autosenses and ...