EVE C33 3.2V 15Ah 33140 LiFePO4 Cylindrical Battery Cell

Large-Format 33140 Cylindrical LiFePO4 Cell for E-Mobility & Portable Power

When designing battery packs for e-bikes, portable power stations, or all-in-one solar street light poles, standard prismatic cells are often too bulky, and standard 18650/21700 cells require too many parallel spot-welds. The EVE C33 15Ah LiFePO4 Cylindrical Cell solves this engineering bottleneck. Featuring a large-format 33.3mm × 140.8mm (33140) footprint, it delivers 48Wh of high-density energy per cell while maintaining the mechanical advantages of a cylinder. Engineered for a 3C continuous discharge (45A) and 2,500 cycles, the C33 is the premium choice for Pakistani manufacturers and DIY builders creating rugged, vibration-resistant, and space-optimized battery packs.

Product Snapshot: EVE C33 Datasheet Specifications

Why Choose the EVE C33 33140 Cylinder?

1. 3C Continuous Discharge (45A) for High-Drain Loads

Most standard LFP cylinders are limited to 1C. The C33 is rated for 3C continuous discharge (45A per cell). In a 4S (12.8V) configuration, a single parallel string can deliver 576W of continuous power. This provides the massive surge current required for e-bike hill climbs, e-scooter acceleration, and high-draw portable inverters without triggering BMS over-current protection or severe voltage sag.

2. Space-Efficient Tubular Packing

Solar street lights, garden bollards, and portable power stations rely on cylindrical or tubular enclosures. Trying to force square prismatic cells into a round PVC or aluminum pole results in massive wasted space. The 33.3mm diameter of the C33 allows for highly efficient packing inside standard tubular housings, maximizing the energy density of your final outdoor or portable product.

3. Superior Vibration & Shock Resistance

Cylindrical cells inherently handle physical stress, vibration, and thermal expansion better than flat prismatic pouches or aluminum cans. For e-bikes, off-road mobility scooters, and street-side solar fixtures exposed to traffic vibrations and Pakistan’s harsh road conditions, the C33’s internal jelly-roll structure provides exceptional mechanical durability.

“In custom pack design, form factor dictates the application. You cannot build a sleek e-bike downtube battery or a high-capacity solar street light pole using bulky prismatic blocks. The EVE C33 gives Pakistani manufacturers the high energy density of a 15Ah cell with the automated spot-welding and tubular-packing advantages of a cylinder. Furthermore, we transparently publish EVE’s own datasheet weight discrepancies because professional engineers need to know exactly what they are welding.”
— Newon Design & Technical Team

System Integration & Pack Assembly

Building a reliable battery pack with large-format cylindrical cells requires precision welding and robust management.

• Smart BMS Protection: Whether you are building a 12V (4S) portable UPS or a 24V (8S) solar street light bank, pairing these cells with the JK Smart BMS ensures active balancing and protects against the high inrush currents common in portable electronics and e-mobility.
• Custom Pack Assembly: Need a turnkey battery tube for a solar project or a custom e-bike pack? Explore our Custom Battery Solutions Services in Pakistan, where Newon’s technicians handle professional spot/laser welding, thick nickel strip sizing, and capacity testing.
• Compare Options: If you need a higher capacity 20Ah cell in a similar form factor, view the EVE C40 20Ah. For large stationary home solar, view the EVE LF100LA 102Ah Prismatic.

Pricing, Delivery, and Bulk Orders

• Unit Price: PKR 2080 per cell.
• Bulk & OEM Pricing: Available for solar street light manufacturers, portable power station assemblers, and EV converters. Contact us via WhatsApp for matched-batch orders. We guarantee matched capacity and IR for automated pack assembly.
• Delivery: Nationwide delivery via secure courier. Cells are shipped in insulated, shock-proof packaging. Delivery charges apply based on destination.

EVE C33 FAQ

Why does the datasheet list two different weights for the C33?

EVE’s official technical documentation has listed both 267 ± 6 g and 356 ± 10 g across different revisions and manufacturing batches. This usually indicates a revision in the internal jelly-roll density or casing thickness. Newon transparently publishes this discrepancy; we advise professional pack builders to weigh their specific batch upon delivery to finalize their pack’s total weight and center-of-gravity calculations.

What does a 3C (45A) discharge rating mean for my e-bike or portable pack?

It means each cell can continuously deliver 45A without damaging voltage sag. In a 4S2P pack (8 cells), that equals 90A continuous at 12.8V—more than enough to handle the heavy surge currents of a 1000W e-bike motor controller during acceleration or hill climbs.

Can I use the EVE C33 for solar street lights?

Absolutely. The 33.3mm diameter is specifically designed to slide into standard PVC and aluminum battery tubes used in all-in-one solar street lights and garden bollards. Its 48Wh energy density and wide discharge temperature range (down to -20°C) make it highly reliable for outdoor Pakistani climates.

What BMS is required for a 33140 cylindrical battery pack?

You will need a BMS matched to your series configuration and continuous current draw. The JK Smart BMS is highly recommended for its active balancing capabilities, which keep large-capacity cylindrical cells perfectly synchronized over thousands of cycles.

Disclaimer: Specifications are based on the manufacturer product page or supplier’s current technical datasheet for the stated model. Actual performance varies with production revision, cell age, temperature, charge/discharge rate, depth of discharge, compression, BMS settings and pack design. Cycle-life figures are laboratory results under specified conditions and are not a guarantee of service life. A loose cell is not a finished battery. A completed pack requires a compatible BMS, protection, fusing, insulation, mechanical support and a suitable charger.