Deep Cycle Systems

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This article is about the battery manufacturer. For other uses, see DCS (disambiguation).

Deep Cycle Systems

Basic information
Founded	2015
Legal structure	Private
Industry	Lithium Batteries
Official website	https://deepcyclesystems.com.au/

Deep Cycle Systems (DCS), founded in 2015, is an Australian company that specializes in the design and manufacture of lithium batteries and energy storage solutions.

Consumer impact summary

Overview of concerns that arise from the company's conduct regarding (if applicable):

• User Freedom
• User Privacy
• Business Model
• Market Control

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Add your text below this box. Once this section is complete, delete this box by clicking on it and pressing backspace.

Claims

DCS claims to manufacture long-life lithium batteries for extreme climates. They advertise them for use in solar systems and hybrid vehicles, including marine ones such as boats._{Better citation needed}

Incidents

Lawsuit against reviews

Main article: DCS sues Small YouTuber for accurate product review showing battery issues & misleading warranty

On August 16, 2023, Australian YouTuber AlloffroadAu uploaded a review on DCS' 12v 50ah LiFePo4 lithium battery, mentioning the short longevity and substantial decline in performance after performing a capacity test. They also made a followup video regarding DCS' questionable history. Both videos were set to private following legal threats from DCS.

AlloffroadAu reports that 30–50% of the storage capacity is lost in the first several years^{[citation needed - needs primary source]}. They also point out that DCS states that battery capacity will be significantly reduced after traveling a certain distance, but that they also don't mention this in their warranty policy^{[citation needed]}.

Hidden warranty policy update

DCS' warranty policy claims that:

• For 'normal installations', batteries that fail to deliver 80% of its rated capacity are covered.
• For installations in engine bays/compartments, batteries that fail to deliver 70% of its rated capacity are covered.
• This policy was last updated June 14, 2021.

This has been the case since November 7, 2023 according to Trove, a web archiving service partnered with the National Library of Australia and other organizations. However, Trove shows that on March 9, 2023, the exception for installations in engine bays/compartments didn't exist, contradicting DCS's statement that their policy was last updated in 2021.

The lack of the second criterion means that owners of a DCS battery purchased before March 9 2023 that:

• Was installed in an engine bay/compartment.
• Fell below 80% of its rated capacity.
• Remained above 70% of it.

would be eligible for warranty coverage, but would have no way of knowing because of the changes to DCS' public warranty policy.

The Trove archives can be found here:

• DCS Warranty Policy on November 7 2023
• DCS Warranty Policy on March 9 2023

Alleged removal of Wayback Machine archives

Internet Archive's Wayback Machine has archives of this policy page, but they are all dated in 2024. This is suspicious when considering:

• DCS falsely claims that their policy was last updated in 2021, when Trove's archives show it was actually updated in 2023, both years not being covered by the Wayback Machine.
• Louis Rossmann claims that consumers of DCS batteries have reached out to him, claiming that they were no longer able to access many older archives of the policy page when they contacted DCS asking when their policy was updated.

This would suggest that DCS was behind the removal of archives before 2024.

Cyberbullying accusations against Louis Rossmann

On the 1st of August 2024, DCS filed a complaint to the Australian government against Louis Rossmann claiming that they are the target of an "orchestrated cyberbullying attack" by Rossmann and his follower base, with the goal being "to discredit the quality of our products," leading to "millions of dollars" of damage to the company, and demanded that Rossmann be "held accountable" for his actions. DCS claimed that Rossmann's accusations against them are "based on one person's opinion," and involved misinformation and disinformation, which is incorrect, because the accusations are backed up by evidence from various sources. For example, the claim about the quick deterioration of the battery capacity is based on a research of the battery by the ITP Renewables, the report of the research is available on Australian Renewable Energy Agency. Rossmann's claim about warranty fraud is backed up by an archived page from their own website, proving that they did falsify their warranty information.

Suspected fake positive reviews

DCS has been suspected by productreview.com.au of fabricating positive reviews.

Safety issues

A reviewer claimed that on August 4, 2023 his car, carrying DCS batteries exploded and caught on fire, the occupants were unharmed but the car was destroyed as a result of the incident. The reviewer alleged that he was faced with legal threats from DCS for publishing the initial review.