
Dakota Lithium
Seattle, with the engineering in Grand Forks — LiFePO4 batteries carrying an 11-year warranty, double what the category usually dares.

Burnaby, British Columbia — power conversion since 1991, from a company that publishes a list of the sellers it will not vouch for.
Samlex America has built power conversion gear from Burnaby, BC under the banner "power conversion products since 1991" — EVO inverter/chargers, NTX and PST pure sine inverters, SEC-P power supplies and SRV solar kits, sold into fleet, marine, RV and off-grid work. What earns it a page here is conduct: an Unverified Reseller Disclosure that names Amazon, eBay, Walmart and Google Shopping as channels it does not sell to directly, and ties warranty to verifiable proof of purchase.
The quiet failure mode of the power aisle isn’t bad engineering — it’s the gray market. Aged stock, returned units resold as new, counterfeits, and warranty claims that die because nobody can prove where the box came from. Most manufacturers mumble about it. Samlex America publishes a page.
The Unverified Reseller Disclosure says it plainly: “Samlex America does not sell directly to Amazon or other e-commerce marketplace platforms.” It names Amazon, eBay, Walmart and Google Shopping; it warns that for units bought there, “we cannot guarantee you will receive genuine or quality products” and “we may not be able to determine whether the products you are purchasing are aging, counterfeit, defective, or otherwise compromised”; and it anchors the policy in the only enforceable place: “warranty is based on the original proof-of-purchase.”
That is what taking your own warranty seriously looks like from the manufacturer’s side. The instruction for a buyer follows directly: buy Samlex from a dealer you can name.
From Burnaby, British Columbia — the address is on the contact page, which sounds trivial until you try to find a street address for half this shelf — Samlex has built power conversion gear under the banner “power conversion products since 1991”. The current line: EVO inverter/chargers, NTX and PST pure sine wave inverters, SEC-P power supplies, battery chargers, DC-DC converters, transfer switches, and SRV solar kits, sold into eight named markets from communications and mobile fleet to marine, RV and fixed off-grid.
This is working equipment in the plainest sense: boxes that convert power, specified by datasheet, without an app, a portal or a subscription anywhere in the transaction. On a roster where Victron Energy is the connected-ecosystem answer, Samlex is the datasheet answer.
The disclosure’s honesty has a flip side. If you did buy from a marketplace, Samlex has told you in advance the risk was yours. The policy is fair and clearly posted — and unforgiving after the fact.
The company publishes almost nothing about itself. No founding story beyond the “since 1991” banner, no named founder, no headcount, no revenue. The corporate opacity is ordinary for a private firm; it still contrasts with how forthcoming the reseller page is, and we note it rather than fill the gap.
No integrated monitoring layer. Buyers who want one system reporting to one screen will not assemble it from this catalog alone.
Certifications live on model datasheets. As everywhere on this site: ratings belong to specific models and installation contexts, not to the logo. Read the sheet for the exact unit, especially anywhere near an engine space.
Boats and fleet vehicles — inverters and chargers specified by installers who will never look at them again.
Fixed off-grid and communications sites, where a datasheet and a transfer switch matter more than an app.
RV power done as an installation rather than as a gadget.
Not for: buyers who want the one-brand monitored ecosystem — that is Victron territory — or anyone who was planning to one-click the cheapest listing. The company itself just told you not to.
The reseller disclosure is the review. A manufacturer that documents its channel and stakes its warranty on it has told you how it will behave in a dispute.
Thirty-plus years in a category of newcomers. Most of this batch was founded after Samlex’s banner year; power conversion since 1991 is a track record, not a launch story.
It keeps the dealer channel meaningful — which is exactly the kind of conduct a site that names its sources wants to see from a brand.
When the inverter has to be specified, installed and then trusted unwatched for a decade, we reach for Samlex.
The nearest neighbors on the shelf — same categories first, same department after that.

Seattle, with the engineering in Grand Forks — LiFePO4 batteries carrying an 11-year warranty, double what the category usually dares.

Bellingham, Washington, 1992 — marine electrical parts built around ABYC practice, under a corporate parent whose name has changed since the 2014 sale.

Shenzhen — power stations from the engineer who built DJI's battery department, sold like consumer electronics, which is both the appeal and the caveat.

Salt Lake City — the solar-generator brand that has answered to three owners since 2009, and now belongs to BioLite.