Battery Cycles Explained
Quick answer
Battery warranties often mention cycles and throughput. This guide explains what a cycle is, how depth of discharge works and how typical daily use in a Scottish home affects battery life. We install through MCS-certified partners across Scotland. Savings depend on your roof, usage and tariff, and a no-obligation survey gives figures for your home.
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Battery warranties often mention cycles and throughput. This guide explains what a cycle is, how depth of discharge works and how typical daily use in a Scottish home affects battery life.
What a cycle is
One full cycle is charging the battery from empty to full and back again. Partial charges add up: two half cycles count as one full cycle.
Depth of discharge
Depth of discharge is how much of the battery's capacity is used. Many batteries reserve a small buffer to protect the cells. Usable capacity, not total capacity, is the figure that matters when comparing batteries.
Warranties
Warranties usually cover a number of years or a throughput limit, whichever comes first, and guarantee a minimum retained capacity at the end. Combining solar storage in summer with grid charging in winter adds cycles, so check that the warranty suits how you plan to use the battery.
Batteries and tariffs in a Scottish home
Scottish solar output is strongly seasonal: long bright days in May and June, and very short days in December. That makes a battery useful all year round. In summer it stores the afternoon surplus for the evening, and in winter it can charge on a cheaper overnight time-of-use rate so the home avoids peak-time import.
Where the battery goes matters in Scotland. Unheated garages, sheds and outbuildings in Aberdeenshire, the Highlands or the Borders can fall below freezing, so the chosen battery must cope with that temperature range or be placed indoors in a utility room, cupboard or heated garage. Your installer also confirms the connection with the local network operator, SP Energy Networks in central and southern Scotland or SSEN in the north and islands, and sets up the inverter schedule for the tariff you choose.
How our survey works
Every project starts with a no-obligation survey. We look at your roof orientation, pitch, shading and condition, your fuse board and meter position, where a battery or inverter could go, and how your household uses electricity through the day and across the Scottish seasons. You then receive a written quote showing the equipment, the expected generation for your roof and the full price, so you can compare it fairly. We handle the network connection paperwork with your local distribution network operator, which is SP Energy Networks in central and southern Scotland and SSEN in the north, Highlands and islands. We install through MCS-certified partners. Solar panels and batteries are 0% VAT until March 2027. Finance available, subject to status.
Frequently asked questions
How many cycles a year is typical?
It depends on use, but daily cycling is common for solar and tariff use.
Is a partial charge bad?
No. LFP batteries handle partial cycles well.
What is throughput?
The total energy that has passed through the battery.
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Get your solar and battery quote
Tell us about your home and we will arrange a survey and a written, no-obligation quote. Finance available, subject to status.