solar battery
- noun
- /ˈsoʊlər ˈbætəri/
- Specialized
- Solar batteries, good ones, are not cheap, but not $29k.
Examples
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Our whole-house alarm is also on the solar battery backup, just in case.
Blog text (5) -
We also have a wood-burning stove that heats our entire modest home, and a whole-house solar battery backup for just the furnace, pumps (water), and stove that will last for about 2 weeks without a charge, but it charges daily because we try to use it once a week to keep it going.
Blog text (5) -
The solar battery stored enough energy to keep the lights on during the night.
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After installing the solar battery, our electricity bills dropped significantly.
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Many homeowners are now using solar batteries to harness and store energy from their solar panels.
Synonyms
A device that stores electricity and can be charged again
A device you can charge again to keep electricity for use later
How Big
- Specialized
Surface Forms
Morphology
The meaning is directly and compositionally derived from 'solar' (relating to the sun/solar energy) modifying 'battery' (an electrical storage device), so a learner can infer it is a battery that stores solar-generated electricity. This adjective+noun pattern is a common, transparent compounding found across languages, making it understandable to a B1 learner who knows both constituents.
Etymology
Solar battery comes from the words solar, meaning 'sun', and battery, a device that 'stores' electricity. Think of a unit that collects power from panels during the day and saves it for use 'later', so the phrase means a battery that holds solar energy for when you need it.