There's a number that should unsettle anyone paying attention to the electric vehicle revolution: 700,000. That's how many EV and hybrid batteries in the United States will hit end of life by 2030, per an Axios analysis from mid-2025. Three years later? Try 2 million.
The infrastructure to handle this tsunami—the sorting facilities, testing protocols, pricing mechanisms, routing systems—is largely theoretical. Which is either a crisis in slow motion or, depending on your outlook, a market opportunity disguised as an environmental obligation.
Currents is betting on the latter.
The San Francisco-based startup (though Portland addresses also appear in some filings, a geographic ambiguity the company hasn't clarified) launched its B2B battery marketplace on December 12, 2023, with a credential that mattered: Nissan North America signed on as the first user. Not as a trial partner or pilot program—as an actual customer channeling real inventory through the platform.
In an industry still trading batteries via phone calls and Excel spreadsheets, that counts as a minor revolution.
An OEM Anchor in Choppy Waters
Nissan's involvement wasn't symbolic. The automaker's 4R program—reuse, remanufacture, repurpose, recycle—now routes its retired battery packs through Currents' platform, which prominently brands itself as the "Official Marketplace for Nissan North America 4R." That inventory, notably, comes with restrictions: buyers can only access it for non-vehicle repurposing applications, according to the company's contact page. A safety valve, perhaps, against batteries re-entering automotive supply chains through unofficial channels.
"We're thrilled to go to market with Nissan's inventory," CEO Anthony Garbarino said when the platform went live. Nick Arnold, a principal at HG Ventures—which participated in Currents' November 2022 seed round—described the company as being "at the forefront of tackling the demand for sustainable energy solutions." The kind of language investors use when they sense first-mover advantage.
What Currents gained from the partnership goes beyond validation. It secured direct access to a major OEM's battery returns, a supply stream that will fatten considerably as early Nissan Leafs and other first-generation EVs age past warranty. Other marketplaces can aggregate sellers. Few can claim a direct line to an automaker's reverse logistics.
The Trust Problem, Quantified
Here's the friction point that's plagued battery trading since the beginning: nobody really knows what they're buying.
A used pack might have 85% capacity remaining or 45%. It might be perfectly safe to handle or a thermal runaway waiting for the right conditions. Without standardized testing, every transaction becomes a negotiation shadowed by mistrust. Sellers lowball to avoid liability. Buyers demand steep discounts to offset risk. Value evaporates in the information gap.
Currents addressed this with something concrete. In February 2025, it announced a partnership with Midtronics, a move covered by Recycling Today. The integration bundles two diagnostic tools—the xVT-1000 surface voltage tester for touch-safety verification and the xOBD-200 for state-of-health measurement. The data syncs automatically into marketplace listings under the "Insight Certified" label.
Suddenly sellers have verifiable SOH percentages attached to inventory. Buyers get hard numbers instead of hopeful estimates. The platform also offers "Insight LookUp," a VIN-based tool that surfaces battery chemistry, estimated market value, recycling value, and DOT classification—useful for operations uploading hundreds of units at once.
It's not revolutionary technology. But in a market operating on handshake agreements and phone-call estimates, even basic transparency feels novel.
Automation for the Volume That's Coming
Diagnostics solve the trust problem. They don't solve the logistics problem of matching thousands of batteries to the right buyers at the right price.
For that, Currents has been layering in procurement tools. April 2025 brought "Make Offer," an in-app negotiation feature that keeps contact information private—a policy the company enforces explicitly, forbidding phone numbers or email addresses in offer messages. By July, "Buying Programs" arrived: open purchase orders and watchlists that auto-execute when matching inventory appears.
For a remanufacturer hunting specific chemistries or SOH thresholds, it eliminates the tedium of manual scanning. A September blog post described one unnamed remanufacturer using the system to automate core sourcing, though the company declined to identify the customer.
The help center, updated through October 2025, reads like the rulebook for a market still learning how to operate digitally. Policies on orders, inventory management, marketplace etiquette—the scaffolding of formalized trade in a space that's been informal for too long.
A Crowded Field, Suddenly
Currents isn't building in a vacuum.
Circunomics, a German marketplace claiming the title of "largest digital marketplace" for second-life batteries, announced U.S. expansion in 2025 and partnered with LION E-Mobility last December. Minespider launched Recircle.market in Europe in February 2026, tied to the EU's RECIRCULATE project on battery passports. ReBattery, billing itself as a global recycling platform, went live in February 2025. Even Redwood Materials operates a dismantler portal, though it functions more as a one-sided buyback tool than a neutral marketplace.
The market projections explain the sudden crowding. MarketsandMarkets forecast second-life EV battery volume scaling from roughly 25–30 GWh in 2025 to 330–350 GWh by 2030, published last August. A February 2023 report from the International Council on Clean Transportation estimated over 1 million EV batteries could reach end of life globally each year by decade's end.
The U.S. Department of Energy has been spreading money around accordingly: $37 million in 2023 to reduce recycling costs, plus conditional loans of $375 million to Li-Cycle and $2 billion to Redwood Materials for domestic capacity build-out. The federal government, at least, sees the wave forming.
What Currents Has Actually Built
Founded in 2021, the company lists between 11 and 50 employees, according to an October 2025 Crunchbase snapshot. Co-founder Tyler Helps serves as chief commercial officer; he presented the product suite at a NAATBatt conference in February 2025.
The funding picture is sparse—almost deliberately so. HG Ventures participated in that November 2022 seed round, but the amount remains undisclosed. No subsequent rounds appear in public filings.
Currents' value proposition rests on three pillars: privileged access to Nissan's battery returns, embedded diagnostics that bypass manual testing bottlenecks, and automation that reduces sourcing friction. Whether that's enough to dominate a fragmenting market—or whether the real value shifts to whoever aggregates the most OEM partnerships fastest—is the open question.
But the 700,000 batteries coming offline by 2030 won't wait for the answer. The wave is already forming. The only question is who'll be ready when it breaks.
