FAQ
TL;DR: 85 % of rejected battery warranty claims trace back to packs older than 12 months [BatteryCouncil, 2022]. “Date codes hide in plain sight” [DriverMSG, #17052857]. Use the first letter/number or last three digits to read year-month, then act fast. Why it matters: Knowing the code saves money and avoids voided guarantees.
Quick Facts
• Typical Exide warranty window: 12 months for motorcycle, 24 months for car batteries [Exide Warranty Sheet, 2023].
• Code sets before 2020 use 1st char=year (8→2018, 9→2019) and 2nd char=letter-month (A=Jan…L=Dec) [qba1012, #18331624].
• Code sets 2020+ use last three digits: 137→Jan 2021, 177→Sep 2021, 240→Apr 2022 [Felini, #20028235].
• Fully-charged AGM battery self-discharge: approx. 3 % per month at 25 °C [BatteryUniversity, 2021].
• Voltage below 12.4 V risks sulphation after 10 days [PNL Lab, 2020].
How do I decode pre-2020 Exide battery codes like 9GC22D2?
Take the first character for year (9=2019) and the second for month’s alphabet order (G is 7th→July). So 9GC22D2 = July 2019 [qba1012, #18331624].
How do I decode 2020 and newer codes such as C2222 140 or C407L 173?
Read the last three digits. Add 100 for 2021, 200 for 2022, etc. 140→April 2021, 173→May 2021 [gugul, #19789640; Felini, #20028235].
My code is 0ED27C1. What’s the date?
0 = 2020, E = May, so May 2020 [Rafael22, #19098048].
I see 9LC12E3 stamped. When was it made?
9 = 2019, L is the 12th letter → November. Production: November 2019 [Felini, #20028235].
What about code KH9J31 on an AGM unit?
K (11th letter) ≈ November, 9 = 2019. Battery made November 2019 [thread pattern, #19263433].
My label shows 0AE14-9. Decode?
0 = 2020, A = January. Production: January 2020 [Rafael22, #19084241].
Is a 06E30-9 code still under guarantee?
06E30-9 decodes to May 2020, exceeding a typical 12-month motorcycle warranty, so guarantee is void [Radian3, #19749795; Exide Warranty Sheet, 2023].
Can the code reveal factory location?
No. The alphanumeric core carries only date data; location is internal and masked, as Exide customer service confirms [edb, #19619945; goumnikos, #19855762].
What’s the risk of buying an unstamped battery?
Without a verifiable code, you forfeit warranty and may receive stock older than 18 months, which can lose up to 30 % capacity [BatteryCouncil, 2022].
How long can a dry-charged motorcycle battery sit before filling?
Dry-stored lead–acid units can remain serviceable for up to three years if kept below 25 °C [Wlodek22, #17053282].
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