A fresh batch of LF356L 3.2V 356Ah LiFePO4 prismatic cells has arrived at our warehouse. We didn't just stack them on pallets and call it a day. Every unit went through a full inspection before being cleared for export. If you're building household energy storage walls, solar off-grid banks, or base station backup systems, this is the kind of Grade A supply you want on your BOM. Here's exactly what we checked.
Live IR and Voltage Testing on the Bench
Every cell in this new batch goes through hands-on testing before it leaves our dock. In our QC station, we use a dedicated battery internal resistance tester on the octagonal terminals. The live reading shows an internal resistance of 0.22 mΩ and a stable voltage of 3.2534V. This matches the factory spec of ≤0.25 mΩ perfectly, proving these cells are ready for high-performance builds like a solar off-grid battery bank. We document these readings so your team gets consistent, match-tested cells right out of the box.

Precision Weight Check Confirms Consistent Build
We put every cell on a precision scale to verify physical consistency. The live reading shows 6.2065 kg, sitting perfectly within the official datasheet range of 6.22 ± 0.15 kg. This tight tolerance matters more than it looks—uniform weight across the batch signals consistent electrolyte fill and casing thickness. For pack assemblers building a solar off-grid battery bank or utility scale LFP storage cabinet solution, that consistency translates to less balancing work and tighter quality control. Combined with the ≤0.25 mΩ internal resistance and ≥8000 cycles, these LF356L cells deliver the Grade A reliability your project needs.

Full Parameter Breakdown of the LF356L
The LF356L LiFePO4 cell brings serious capacity in a compact prismatic size. Measuring 72 × 186.6 × 209 mm and weighing 6.22 ±0.15 kg, it runs at a nominal 3.2V with a 356Ah rated capacity. It handles a max charge of 3.65V, 0.5C discharge, and operates from -30°C to 60°C. With ≥8000 cycles, this is a durable core for any utility scale LFP storage cabinet solution or daily deep-cycle application
Terminal Detail and Traceable QR Code
Build quality starts with the hardware. The cell features clearly marked positive and negative electrodes with robust hexagonal terminals for secure busbar connections. Between them sits the complete QR code and barcode. We scan every code to ensure traceability, linking directly to the manufacturer’s decoder to guarantee a 100% original cell.
Versatile Applications Across Solar, Wind, and Telecom
The LF356L delivers steady, reliable power across diverse energy setups. Whether you are planning a household energy storage system, securing a telecom base station, or integrating solar and wind power projects, this high-capacity cell fits seamlessly. Its robust design ensures long-term stability, making it a dependable core for your next residential or commercial energy solution.

Factory Data Report Confirms Real Capacity Over 366Ah
The numbers don’t lie. Our original factory shipping data report lists actual capacities ranging from 366.4Ah to 368.9Ah across the batch, with consistent IR around 0.14 mΩ. The decoder verifies the QR code as a genuine LF356L (3.2V, 356Ah nominal, produced July 2026). Real-world capacity exceeds 366Ah, giving you a verified buffer above the rated 356Ah. For household energy storage or commercial projects, this grade-A consistency means less balancing and longer life. Reach out for the full test data and current stock lead times.
FAQ
Q:Can I have samples to test? And what is lead time for sample order?
A:Yes, we can supply samples, the lead time for samples is 7-10 days. And buyers pay for sample cost and shipping cost.
Q:Do you provide after-sales serive?
A:Yes, We offer 5 years warranty for lifepo4 battery, and 1 years for Nmc battery, increase the cost to 5-10 years. For damaged due to non-human factors, we will refund or send new battery for replacement after providing pictures or videos for evidence.
Q:What is your company's advantage?
A:We only supply high level quality of lithium battery and we gurantee on-time shipment, we also provide excellent after-sales service.
Q:Do you accept OEM/ODM?
A:Yes, it is avaliable.
Q:Are the batteries come with bus bars + nuts?
A:This price includes busbars and nuts. Each cell will be provided with one set of busbars and nuts (e.g., if you purchase 4 cells, we will deliver 4 cells with 4 busbars and 8 nuts). Should you require further details, please feel free to contact us directly.
Q:Are you battery real capacity?
A:All of our battery cells with Grade A, 100% new and real capacity.
Q:Are you a factory or a trading company?
A:We are a professional rechargeable lithium-ion battery and LifePO4 battery manufacturer, welcome to visit.
Q:What kind of certificates do you have?
A:We can provide CE, ROHS, UL, FCC, IEC, MSDS, UN38.3 & etc. if your need.
Welcome to contact us:
Shenzhen Starmax Energy Technology Co., Ltd.
WhatsApp/Wechat/Mobile: +86 14704451321
Email: support@szxhbattery.com
Website: www.szxhbattery.com
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