User:Louis/Dragonfly Energy trade libel suit Will Prowse: Difference between revisions
Userspace legal-research note Tag: Recreated |
Add documented BB1275 charge-current spec discrepancy (manufacturer 37.5A vs distributor/Wayback 50A datasheets); upload datasheet PDFs and side-by-side comparison |
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Granting the note every one of these points changes nothing about the suit. It is precise about undisputed chemistry, about a laboratory listing that does not test field reliability, and about arithmetic for a connection that stays tight. It offers no field-failure data and no account of the new, in-spec packs that overheated, which is the only question the lawsuit raises. A plaintiff holding proof that a reviewer's safety findings were false would not need to be this exact about everything except the failures. | Granting the note every one of these points changes nothing about the suit. It is precise about undisputed chemistry, about a laboratory listing that does not test field reliability, and about arithmetic for a connection that stays tight. It offers no field-failure data and no account of the new, in-spec packs that overheated, which is the only question the lawsuit raises. A plaintiff holding proof that a reviewer's safety findings were false would not need to be this exact about everything except the failures. | ||
== Battle Born's charge-current specification for the 75Ah battery == | |||
[[File:Battle-Born-BB1275-charge-current-datasheet-comparison.png|thumb|center|820px|Two Battle Born datasheets for the same BB1275 (75Ah) battery, page 3, Charging Specifications. Left: the datasheet on battlebornbatteries.com as of June 7, 2026, listing ''"Max Charge Current 37.5A"''.<ref name="bb1275-ds-current" /> Right: the "BB1275 Standard Datasheet_V2", listing ''"Max Charge Current 50A"'', the file that was on battlebornbatteries.com when the Wayback Machine captured it on October 16, 2025 and that Defender still serves.<ref name="bb1275-ds-v2" /> Every other charging-specification row is identical.]] | |||
One of the complaint's specific factual charges is that Prowse's instrumented test of the 75Ah battery overcharged it. The complaint pleads: | |||
<blockquote>''"Prowse's 'testing' is intentionally abusive and invalid. The abuses demonstrated in this video and accompanying released data include that (1) the charge current was simultaneously ~49A, 30% over the 37.5A maximum specified in the manual ..."''</blockquote><ref name="complaint" /> | |||
That charge depends on 37.5A being the maximum charge current Battle Born published for the battery. For the 75Ah BB1275, Battle Born has published two different figures. | |||
The owner's manual and the datasheet currently on Battle Born's website state 37.5A. The datasheet at battlebornbatteries.com lists ''"Max Charge Current 37.5A"'', alongside a recommended charge current of ''".5c"'', which for a 75Ah cell is 37.5A.<ref name="bb1275-ds-current">Battle Born Batteries, BB1275 Data Sheet, page 3, Charging Specifications row ''"Max Charge Current 37.5A"''. {{Cite web |url=https://battlebornbatteries.com/cdn/shop/files/BB1275_Data_Sheet.pdf |title=BB1275 Data Sheet |publisher=Battle Born Batteries (Dragonfly Energy) |access-date=2026-06-07}} [[Media:Battle-Born-BB1275-datasheet-manufacturer-37A.pdf|Uploaded copy]]. The file's internal PDF metadata gives a creation date of June 1, 2026.</ref> | |||
Battle Born has also published, for the same battery, a datasheet stating 50A. The document is internally titled "BB1275 Standard Datasheet_V2" and its page 3 lists ''"Max Charge Current 50A"''. That file was hosted on battlebornbatteries.com, where the Wayback Machine captured it on October 16, 2025, and the same file is currently served by Defender, a retailer that sells the battery.<ref name="bb1275-ds-v2">Battle Born Batteries, BB1275 Standard Datasheet_V2, page 3, Charging Specifications row ''"Max Charge Current 50A"''. Served by Defender: {{Cite web |url=https://defender.com/assets/pdf/battle-born/bb1275-standard-datasheet_v2-compressed.pdf |title=BB1275 Standard Datasheet (v2) |publisher=Defender (Battle Born retailer) |access-date=2026-06-07}} [https://web.archive.org/web/20251016152325/https://battlebornbatteries.com/wp-content/uploads/2022/11/BB1275-Standard-Datasheet_V2-compressed.pdf Wayback Machine capture] of the same file on battlebornbatteries.com, October 16, 2025. [[Media:Battle-Born-BB1275-datasheet-v2-50A.pdf|Uploaded copy]]. The file's internal PDF metadata gives a creation date of December 30, 2024.</ref> The two datasheets are identical page for page except for that one ''"Max Charge Current"'' figure. | |||
The two figures bracket the test. Hackaday's coverage of the 75Ah test records that the battery was ''"charged and discharged at a mere 49A, well below its rated 100A."''<ref name="hackaday-death" /> A charge of about 49A is below the 50A maximum stated in the datasheet that Battle Born's own site carried into October 2025 and that its retailer still serves, and above the 37.5A maximum stated in the manual and in the current datasheet. The complaint quotes Prowse's own account of the same point, that he ran the test ''"under the continuous charge current"'' and that the battery ''"was used within spec on the datasheet."''<ref name="complaint" /> | |||
==Prowse's own history with these batteries== | ==Prowse's own history with these batteries== | ||