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Fake batteries on eBay

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Impossible battery capacities are a common sight when one is looking for cheap rechargeable batteries. Readers may be familiar with this due to the Deep Cycle Systems coverage in ~5 of Louis Rossmann's YouTube channel videos.

A consumer was successful in pressuring eBay to remove entire sub-categories of 100% fraudulent battery products from its site - e.g.

  • Rechargeable AAA batteries (NiMH) with a claimed capacity of 1800 mAh+ ,
  • Rechargeable AA batteries (NiMH) with a claimed capacity of 3000 mAh+ and
  • Rechargeable 18650 (Li-ion) batteries with a claimed capacity of 4000 mAh+ (example of expert testing of a "10000 mAh" one).[1]

The categories were taken down and the fraudulent products were often unavailable on eBay for several years.

Readers are encouraged to emulate the activity shown - contact eBay via the periodic public community chats where it's hard to avoid the spotlight.

Due to the basic chemistry of NiMH and Li-ion batteries, often, claimed-capacity advertising claims can be clearly identified as false without seeing the product - just based on the ad content alone, when the size of the battery makes the energy storage claim implausible.

According to expert opinions (e.g. on sites like HKJ's lygte-info.dk) no one (including the world's best Li-ion battery manufacturers) even make 18650 Li-ion batteries that are truly > 4000 mAh.[2] The best AAA NiMH batteries in the world top out around 1100mAh (and ~3500 mAh for AA NiMH's).  One can see this if you visit specialist testing sites, e.g. see HKJ's lygte-info.dk site.[3]

The major name brands/manufacturers never claim anything close to 1800 mAh for AAA batteries. e.g. 1000 mAh AAA's.[4]  Real rechargeable AAs (see an archive of AA's shown on Sony's website) are 2100, 2500 and 2700 mAh. Fakes claim 3800 mAh.[5]

Sadly fake memory is still being sold on eBay and Amazon and more egregiously, eBay has even resumed allowing listing these readily identifiable categories of 100% fraudulent batteries.

References

[edit | edit source]
  1. ↑ "eBay Community  Discussions". Nov 2016. Archived from the original on 7 Aug 2019. You've shamed me into following up on this issue. So I'll see what I can do to clean up this category."
    in response to
    "Categories is your field, @syedmhaq. Please don't dodge responsibility. The category is still live. So are similar guaranteed 100% fraudulent categories.
    The best AAA NiMH batteries in the world top out around 1100mAh ((and ~3500 mAh for AA NiMH's). You can see this if you visit specialist testing sites, e.g. see lygte-info.dk/review/batteries2012/CommonAAcomparator.php and check them all out - e.g. the highest capacity: Tecxus AAA 1100 NiMH ~== Camelion AAA 1100mAh - see image below.
    The major name brands never claim anything close to 1800 mAh for AAA batteries
  2. ↑ "Battery test for Li-ion (mostly 18650) batteries, comparator". lygte-info.dk site about batteries, chargers and flashlights. Archived from the original on 2026-08-03.
  3. ↑ "Battery test for AA and AAA (Alkaline, lithium, NiMH) batteries, comparator". lygte-info.dk (site about batteries, chargers and flashlights). Archived from the original on 2026-08-03.
  4. ↑ "Energizer hr03 spec sheet" (PDF). Energizer. Archived (PDF) from the original on 2026-08-03.
  5. ↑ ""Sony" CycleEnergy "3800mAh" Ni-MH AA-cells". CandlePowerForums. Archived from the original on 2026-10-30.