Vancouver / Richmond, BC · Cell Sourcing & Pack Customization

Igniting the energy flow
from China's cells to your pack line.

SylvaGrid ignites the connection between vetted Chinese battery cell manufacturers and pack builders anywhere in the world — sourcing, compliance, and supply continuity, plus custom pack design and assembly for teams that want a finished pack, not just loose cells.

Request a sourcing call See what we handle ↓

UN 38.3

documentation verified
on every sourced cell

CN ⇄ World

on-the-ground teams,
both sides of the deal

16+

cell models in active
catalog, growing monthly

Why it's hard — The Sylva Gap

Sourcing cells from China isn't the bottleneck.
Trusting what arrives is.

Pack manufacturers outside China don't struggle to find a factory — they struggle to find one they can verify, communicate with in real time, and hold accountable after the invoice is paid.

Language & Distance

Specs get lost in translation

Datasheets, tolerances, and quality flags don't always survive the trip from a Chinese factory floor to a foreign engineering team — and by the time the gap surfaces, the cells are already on a boat.

Compliance

Missing paperwork stops shipments cold

UN 38.3 test summaries, MSDS, and CO get requested after the fact more often than they should. Without them, cargo sits at customs — or worse, doesn't clear at all.

Continuity

One factory relationship is a single point of failure

A single-supplier line stalls the moment that factory has a bad quarter, a capacity shift, or a policy change. Pack production shouldn't depend on one phone number in Shenzhen.

What we do — The Thermal Core

One point of contact.
Both sides covered.

SylvaGrid sits between Chinese cell manufacturers and the pack builders who depend on them — doing the vetting, translation, and paperwork so your line doesn't have to. Need a finished pack instead of loose cells? We handle that too.

Sourcing & Vetting

We shortlist, audit, and pressure-test cell manufacturers against your chemistry, form factor, and volume requirements before you ever see a quote.

Factory audits & capability checks
Sample coordination & lab comparison
Chemistry & form-factor matching

Pack Customization

Don't want to manage cell-to-pack assembly yourself? We build the finished pack — configured, protected, and ready to bolt onto your platform.

Custom series/parallel configuration
BMS selection & integration
Enclosure design & connector spec

Compliance & Documentation

Every shipment we broker travels with the paperwork customs and your safety team actually need — assembled before the cargo leaves the factory, not after.

UN 38.3 test summary verification
MSDS & certificate of origin
Transport & import documentation

Logistics & Continuity

We manage the freight relationship and keep a backup supplier warm, so a single factory's bad month never becomes your production's bad quarter.

Freight coordination, sea & air
Backup supplier bench per SKU
Ongoing account management

Specialized UAV lithium-metal pouch cell

Current catalog — The Seed Bank

16 cells, vetted and ready to quote.

A live sample of the manufacturer portfolio we currently broker — specialized UAV, long-range, heavy-load, and robotics cells across lithium-metal, anode-free, and semi-solid-state chemistries. Full datasheets and pricing available on request.

Ultra-High-Energy-Density Lithium-Metal & Anode-Free Series

LMB / AFB · Specialized UAV

Built for weight-constrained specialized UAV platforms — highest energy density in the portfolio, rated for continuous discharge up to 8C and operating temperatures down to −30°C.

Model	Chemistry	Application	Capacity (Ah)	Voltage Platform (V)	Operating Voltage (V)	Energy Density (Wh/kg)	Cont. Discharge	Peak Pulse	Temp Range (°C)
11Ah LMB	LMB	Specialized UAV	11	3.8	3.0–4.3	400	8C	10C@10s	−30–60
12Ah LMB	LMB	Specialized UAV	12	3.8	3.0–4.3	500	3C	6C@10s	−30–60
28Ah AFB	AFB	Specialized UAV	28	3.8	3.0–4.3	530	4C	5C@10s	−30–60
28.5Ah AFB	AFB	Specialized UAV	28.5	3.84	3.0–4.5	550	3C	4C@10s	−30–60
19Ah AFB	AFB	Specialized UAV	19	3.8	3.0–4.3	530	4C	5C@10s	−30–60
20Ah AFB	AFB	Specialized UAV	20	3.84	3.0–4.5	540	3C	4C@10s	−30–60
16Ah AFB	AFB	Specialized UAV	15.7	3.8	3.0–4.3	500	5C	6C@10s	−30–60

High-Energy-Density Semi-Solid-State Series

SSB · Long-Range / Heavy-Load UAV / Robotics

Semi-solid-state chemistry across long-range, heavy-load, and robotics platforms — wider temperature tolerance (down to −40°C) and documented cycle life at 80% state-of-health.

Model	Chemistry	Application	Capacity (Ah)	Voltage Platform (V)	Energy Density (Wh/kg)	Cont. Discharge	Peak Pulse	Life Cycle (25°C)	Temp Range (°C)
28Ah SSB	SSB	Long-Range UAV	28	3.6	320	5C	10C@10s	1000 cyc @80% SOH	−40–60
31Ah SSB	SSB	Long-Range UAV	31	3.6	310	6C	10C@10s	1000 cyc @80% SOH	−40–60
35Ah SSB	SSB	Long-Range UAV	35	3.6	320	6C	10C@10s	1000 cyc @80% SOH	−40–60
39Ah SSB	SSB	Long-Range UAV	39	3.51	350	5C	10C@10s	500 cyc @80% SOH	−40–60
50Ah SSB	SSB	Long-Range UAV	50	3.6	310	5C	10C@10s	1000 cyc @80% SOH	−40–60
27Ah SSB	SSB	Heavy-Load UAV	27	3.65	275	8C	10C@90s	800 cyc @80% SOH	−40–60
30Ah SSB	SSB	Heavy-Load UAV	30	3.75	210	12C	20C@10s	1500 cyc @80% SOH	−20–90
9Ah SSB	SSB	Robotics	8.8	3.6	318	5C	8C@10s	1000 cyc @80% SOH	−40–60
13Ah SSB	SSB	Robotics	13	3.6	310	4C	6C@10s	500 cyc @80% SOH	−30–60

Catalog shown reflects one partner factory in our current network. LMB = lithium-metal battery. AFB = anode-free battery. SSB = semi-solid-state battery. Don't see the form factor or chemistry you need — pouch, cylindrical, prismatic, other capacities? Tell us your spec and we'll check it against the rest of our supplier bench.

How we work — The Ignition Sequence

From first call to running line.

A fixed sequence, not a black box — you know what's happening at every stage, whether you're sourcing loose cells or having us build the finished pack.

Discovery call

We take your cell spec, volume forecast, and timeline, and identify which of our vetted manufacturers can actually meet it — no generic RFQ blast.

Supplier match & samples

You receive samples from one or two matched factories along with translated datasheets and lab comparison notes, not raw marketing decks.

Compliance verification

Before any purchase order is placed, we confirm UN 38.3, MSDS, and CO documentation is complete and matches the actual production batch.

Order & logistics

We manage the PO, freight booking, and customs handoff — with a Canadian point of contact you can reach during your own business hours.

Ongoing account management

Repeat orders, backup supplier activation, and early notice of any factory-side disruption — for as long as the cell is on your BOM.

Compliance, by default — Bedrock Compliance

We don't sell you the cell.
We sell you the paper trail behind it.

Transport Canada's own testing found that half of sampled third-party replacement lithium batteries failed UN 38.3 — some catastrophically. We built our process around that exact failure point.

UN 38.3 test summaries, verified against batch

We confirm the test summary corresponds to the exact production run being shipped — not a general certification for the product line.

Full documentation package, before departure

MSDS, certificate of origin, and transport declarations are assembled and checked prior to the cargo leaving the factory.

A record you can hand to your own QA team

Every shipment comes with a documentation file your compliance or engineering team can audit independently.

Documentation checked per shipment

UN 38.3

MSDS

Certificate of Origin

IEC 62133

Transport Declaration

Batch Traceability

Documentation gaps are the single most common reason third-party cell shipments stall at customs. We check before you commit, not after the shipment is stuck.

The SylvaGrid Standard

We don't just ship cells. We ship certainty.

Three commitments that hold on every order, regardless of factory, chemistry, or destination port.

Grown, not gambled

Every factory in our network is audited and re-checked, not just onboarded once and forgotten.

Superheated, not slow

Sourcing, QA, and logistics run as one coordinated process — not three handoffs that each add a week.

Grounded, not fragile

Documentation, backup suppliers, and a real point of contact — the foundation stays solid under volume.

Igniting the energy flowfrom China's cells to your pack line.

Sourcing cells from China isn't the bottleneck.Trusting what arrives is.