Hot sale
LiFePO4 Cell
INSUM 3.2V LiFePO4 Cell 280Ah / 314Ah
3,000+ cycles at 80% DoD · −20°C to +60°C · CE / UN38.3 / MSDS / TÜV · 5-year warranty.
EU Certified LiFePO4 Solutions
LiFePO4 storage, from our EU warehouse to your door.
Grade-A cells, DIY kits with JK & SEPLOS BMS, complete 51.2V packs — and a full OEM/ODM line behind them. DDP delivery across all 27 EU member states in 2–5 days.
- 90,000+Cells shipped
- 2–5 daysEU DDP delivery
- 27EU markets
- 5-yearWarranty
CE Certified
UN38.3 & MSDS per shipment
ISO 9001 factory
EU warehouses in Poland
Grade-A cells · 8,000 cycles
TÜV-tested components
INSUM Energy in brief
INSUM Energy (operated by Yinsheng New Energy Technology Co., Ltd., Shenzhen, founded 2020) is a LiFePO4 battery supplier specialised in the European market — selling Grade-A prismatic cells, DIY kits with JK & SEPLOS BMS, smart BMS boards and complete 51.2 V home battery packs to distributors, installers and DIY builders, with stock inside the EU and OEM/ODM manufacturing in Shenzhen.
280 Ah / 314 Ah A-grade cells
Warsaw & Parole warehouses
OEM from 100 sets
CE · UN38.3 · 5-year warranty
More about us
Best sellers
Popular right now — shipped from Poland
Real stock, real prices in EUR. Every order ships DDP from our EU warehouses in 2–5 working days — no customs, no surprises.
Flagship
DIY Kit · SEPLOS V4
LiFePO4 DIY Kit with BMS SEPLOS V4
LCD colour screen · 250A UL-certified breaker · active balancing · galvanized steel.
HOT sale
DIY Kit · SEPLOS BMS
SEPLOS V3 Mason 280L Battery Box + BMS
Integrated SEPLOS 3.0 BMS — overcharge, short-circuit, overcurrent and high-temperature protection.
affordable
DIY Kit · 16-Cell
INSUM C1-JK Kit for 16 Cells
All-in-one 16S kit for RVs, solar backup and home storage — no separate component sourcing.
New Arrived
DIY Kit · Vertical
Vertical Battery Box + SEPLOS 3.0
Space-saving vertical format with integrated SEPLOS 3.0 BMS and full protection suite.
New Arrived
Battery Case
INSUM V1-JK 16S 51.2V Case
314Ah-ready metal case with JK BMS + LCD · 16-cell scalable design · 30 kg robust build.
High Quality
BMS · Entry
SEPLOS BMS 16S 200A — 3.0 Series
Compact 16S 200A for 48V packs · 100A–200A range, with or without 4.3″ LCD.
affordable
BMS · Top Tier
JK BMS 16S 300A + LCD — PB2A
300A continuous with active balancing and full cell-parameter display — for demanding systems.
Product spotlight
SEPLOS V4 — the kit our EU buyers standardize on
Our best-selling DIY platform for 16S 51.2 V packs. Built for people who want one box, one afternoon, one working battery — no separate BMS wiring, no guesswork.
- LCD colour screen — live cell voltage, current and temperature
- 250A UL-certified breaker integrated in the lid
- Active balancing extends pack lifespan cell by cell
- Automotive-grade galvanized steel — rust-resistant shell
- 16 packs in parallel — expand capacity as you grow
- Bluetooth App — real-time battery info on your phone
51.2VNominal
280/314AhCell option
1P16SConfiguration
€799Kit price
Applications
One cell platform, three ways to use it
From a single 16S DIY build to a small commercial system — everything runs on the same 3.2 V 280 Ah / 314 Ah A-grade platform, so parts and knowledge stay interchangeable.
Home energy storage
Vertical, rack and stackable 51.2 V packs from 5 to 48 kWh — pair with any inverter via CAN / RS485 protocol matching we do for you.
Fits: complete packs, SEPLOS & JK kits, 280/314 Ah cells
Shop home storageOff-grid, RV & solar backup
Build your own 16S pack in a day with a pre-wired kit — or start from bare cells and BMS. MOQ from 4 cells / 1 kit, shipped from Poland.
Fits: DIY kits, JK BMS boards, battery cases
Shop DIY kitsSmall business & C&I
Small-scale commercial systems for peak shaving and energy-cost control — with project support, TÜV-tested components and volume pricing.
Fits: 48 kWh packs, custom C&I systems, OEM projects
Talk to our team
Find your setup
What brings you to INSUM?
Three kinds of buyers, three ways in. Pick yours — the recommendation is already waiting.
DIY builder
Start from cells and a BMS, or skip the wiring with a pre-built kit. Everything compatible, everything in the EU.
- 280/314 Ah cells from €79
- JK BMS 16S 100A–300A from €159
- SEPLOS V4 all-in-one kit €799
Installer
Stock inside the EU means your next job never waits on a container. Protocol matching included with every pack.
- 2–5 day DDP delivery
- CAN / RS485 / Bluetooth matching
- 5-year warranty + free spare parts
Distributor / Reseller
Private-label LiFePO4 range without building a factory relationship from scratch — 10,000+ custom sets already delivered.
- OEM branding from 100 sets
- Concept to production in 45–60 days
- Exclusive project manager
Why INSUM
A supplier built around one market: Europe
We don't chase every market. We know one market deeply — its certifications, its grid codes, its installation habits — and we built the whole supply chain around it. That focus is why our buyers come back.
EU stock, DDP delivery
Two warehouses in Poland ship to all 27 member states in 2–5 working days — no customs fees, no surprise costs.
Documented quality, not claims
CE, UN38.3 and MSDS with every shipment; TÜV-tested components and ISO 9001 factory processes. Papers before your first order.
Grade-A cells only
8,000 cycles at 80% DoD, pack-tested before every shipment — because weak cells are the fastest way to lose a European customer.
Real service, 2-hour reply
Free spare parts — we ship the part, you keep the system running. Remote BMS diagnostics solve most faults without return shipping.
Flexible commercial terms
MOQ from 4 cells / 1 kit for stock models, FOB · CIF · EXW · DDP terms, USD / EUR / GBP, T/T · L/C · Escrow.
One contact, quotation to container
No handovers between departments, no re-explaining your spec. A team of 11–50 specialists carries your order end to end.
OEM / ODM
Your brand, our production line
One-stop customization for LiFePO4 batteries, BMS systems and energy storage kits — capacity, voltage, communication protocol, packaging and branding. Rapid response within 24 hours, customization scheme within 7 days.
500,000+Units annual capacity
8+ yrsR&D experience
10,000+Custom sets delivered
30+Partner countries
Demand communication
Share your specs, form factor and BMS requirements — we respond with a dedicated project manager within 24 hours.
Design proposal
ID, mechanical, PCB and firmware scope — a full customization scheme covering cells, BMS protocol and packaging.
Sample & confirmation
Rapid prototyping with full cycle, capacity and safety validation. Private-label artwork confirmed in 5 working days.
Mass production & EU delivery
Automated assembly with full-process QC on the same quality system as our standard products — then DDP from Poland.
Delivery promise
From click to doorstep in 2–5 working days
Stock inside the EU customs area means no duty surprises — for you or your customers.
1 · You order
Shop online or request a quotation — stocked models dispatch within 2 days.
2 · We pick & pack
From our Warsaw or Parole warehouse — already inside the EU customs area.
3 · DDP shipping
Duties and VAT handled by us — your paperwork stays clean, the price stays the price.
4 · At your door
2–5 working days to any of the 27 EU member states. Documents included.
Outside the EU? Orders ship directly from Shenzhen with CE, UN38.3 and MSDS issued per shipment — FOB · CIF · EXW · DDP.
FAQ
Straight answers before you order
Fastest route for anything not covered here: WhatsApp — we usually reply within two working hours.
What does INSUM Energy sell?
INSUM Energy sells Grade-A LiFePO4 prismatic cells (280 Ah and 314 Ah), DIY battery kits with JK and SEPLOS BMS, smart BMS boards (16S 100A–300A), complete 51.2 V home battery packs, and small-scale C&I energy storage systems — with prices from €79 for single cells and EU shipping from warehouses in Poland.
How fast do you deliver in the EU?
Orders ship from two EU warehouses in Poland (Warsaw and Parole) to all 27 EU member states in 2–5 working days, DDP — no customs fees or unexpected costs. Stocked models dispatch within 2 days. Orders outside the EU ship from Shenzhen with full export documentation.
What is the minimum order quantity?
For LiFePO4 cells the MOQ is 4 cells (one box). For DIY kits and accessories the MOQ is 1 set. Custom logo and enclosure branding starts from 100 sets, while capacity, voltage and BMS protocol can be configured from a single unit.
Do you offer OEM and ODM services?
Yes. Full OEM/ODM: logo printing, enclosure design and private-label packaging from 100 sets, plus BMS firmware customization and inverter protocol matching (CAN / RS485 / Bluetooth) from a single unit. Our engineering team covers industrial design, mechanical engineering, PCB layout and embedded software — concept to mass production in 45–60 days.
What warranty and certifications are included?
All products carry a 5-year warranty with free spare parts and online technical support. Every unit is CE certified; UN38.3 and MSDS transport documents are issued with every shipment, and TÜV-tested components are available on request. Grade-A cells are rated for 8,000 cycles at 80% depth of discharge.
