Know what
you're driving.
Every car we sell carries a battery report in the windscreen. Tested by Spark Works, explained by the person who ran it.
How to read it
SPARK MOTORSBattery report
94%
Excellent
This battery holds 94% of the charge it held when new. Very little wear.
60100
- Mild range
- 310 miles
- Winter range
- 240 miles
- Battery warranty
- To confirm placeholder
- Checked
- 14 Oct 2026, by Spark Works
Report SM-000141
1
The number
How much charge the battery holds today, compared with new.
2
The word
One of four bands, so you can compare cars at a glance.
3
The sentence
What that number means, in plain English.
4
The detail
Mild and winter range, warranty, who checked it and when.
The four bands
Each card reads: “This battery holds X% of the charge it held when new.” followed by its band sentence.
90–100%
Excellent
Very little wear.
85–89%
Very good
Normal wear for its age.
75–84%
Good
Comfortable for most daily driving.
Below 75%
Fair
Shorter range than new; we'll talk it through.
Questions
It is how much charge the battery can hold today compared with when it was new. 94% means it holds 94% of its original charge.