We do not build packs. We make the cells inside them count.
Shenzhen Weihang Technology supplies prismatic LiFePO4 cells to pack builders, integrators and EPCs — and engineers the selection decision that sits in front of the purchase order.
The most expensive decision in a pack is made in ten minutes.
A pack builder receives a spec: 16 kWh, 51.2 V, this cabinet. Someone opens a catalogue, picks the capacity they bought last time, and the BOM is fixed for the next two years. That single choice decides the cell cost, the joint count, the balance load, the thermal design and the warranty exposure.
We started Weihang because that decision was being made by whoever answered the phone at a trading company. Twelve manufacturers make the same 314 Ah cell, at three price points and two cycle ratings. Choosing between them is engineering, not procurement — and it should be done by someone who has to live with the answer.
| Legal entity | Shenzhen Weihang Technology Co., Ltd. |
|---|---|
| Based | Bao'an District, Shenzhen, Guangdong, China |
| What we sell | Prismatic LiFePO4 cells, 15–684 Ah |
| What we do not sell | Finished packs, modules, BMS |
| Stock models | 31, across 12 manufacturers |
| Main markets | Vietnam, Russia, Bangladesh, India, EU |
| Incoterms | FOB Shenzhen / Yantian, CIF, DDP on request |
A short chain, on purpose.
There is no sales layer between you and the person who does the sizing. The engineer who reads your drawing is the one who confirms the batch, checks the documents and answers when something is wrong two months later.
Qualify the factory
Model-level certificates, grading consistency across lots, and whether the allocation is real.
Qualify the fit
String arithmetic against your BMS, module weight, busbar routing, thermal envelope.
Hold the stock
Graded cells in our own space, photographed, so the shipment matches the offer.
Own the outcome
Documents, loading photos, and a named engineer for the life of the account.
314 Ah · 3.2 V
Four positions we will not trade away.
The cheapest cell is rarely the cheapest pack.
Assembly, joints, grading losses and warranty claims all move with the cell you pick. We price the pack, not the can.
Brand is not a quality grade.
Every large manufacturer sells more than one grade. What matters is the grade and the lot, and both are written on the documents we send you.
Say the trade-off out loud.
A single string is cheaper and cannot be partially replaced. A big can halves the joints and costs more per kWh. You get both sentences.
Never ship a lot you would not test.
If a batch fails our sampling, it stays in Shenzhen. We would rather delay a shipment than explain a swelling cell in six months.
One engineer, one thread, one answer.
Write in English, Vietnamese or Russian — we reply in the same language, with the numbers attached.
Bao'an District, Shenzhen, Guangdong, China 518000
Shenzhen, Guangdong
Visits are welcome. Tell us two days ahead so the batch you want to see is pulled and staged before you arrive.
Tell us what you are building.
Voltage, energy, volume per month. That is enough to open a file.