B2B supply · Indian battery-pack builders
The supply house that shows its test data.
CellBazaar is where pack builders buy cells, BMS, balancers, welders and consumables with proof instead of promises — every batch tested in-house, graded honestly, and backed by a QC report anyone can verify.
Certificate of Analysis
BAK 21700 5000mAh EV
BAK-21700-5000
Illustrative seed data
What you get
Built to de-risk your pack business
Batch-tested stock
Capacity + internal resistance measured in-house on every incoming lot — the report ships with your order and anyone can verify it online.
Honest grading
Fresh-A, B-grade and refurbished are labelled plainly and priced accordingly. Nothing is re-wrapped, ever.
GST input credit
A compliant tax invoice with componentized CGST/SGST/IGST on every order — claim your full input credit.
Hazmat-safe dispatch
Lithium cells are UN3480 dangerous goods. We ship compliant, with pincode serviceability checked before you pay.
Free builder tools
Pack Planner, BMS Picker and a compatibility checker — order the right parts the first time.
WhatsApp-first service
Quotes, order updates and restock alerts on WhatsApp. Natural-language and voice ordering are on the way.
Services
One partner, four jobs done
Supply
Cells (18650 · 21700 · LFP prismatic), BMS, active balancers, spot welders, nickel strip, connectors and consumables — the whole pack, one order.
Testing & QC reports
Multi-channel capacity grading, 1kHz IR, honest grade, storage SOC — published per batch with a public verify ID and QR.
Build support
Spec-first catalog with real datasheets, tiered B2B pricing, and free planning tools built by people who build packs.
Logistics & terms
Zone-wise UN3480 freight, samples and capped pay-on-delivery for first orders, Net-15/30 credit for established accounts.
The trust moat
Every number on our QC cards is measured, not claimed
STEP 01
Receive & logEvery lot gets a batch ID and supplier record.
STEP 02
Capacity testSampled on a multi-channel grader; avg, range, σ.
STEP 03
IR + grade1kHz internal resistance; graded A / B / refurb.
STEP 04
Publish & verifyReport published with a scannable verify ID.
Ready to build on tested cells?
Browse live, batch-verified stock — or start small with a sample order and pay on delivery up to ₹10,000 on your first purchase.