Molicel P42A 21700 Cell - Qty 200
Molicel P42A — 21700 · 4200 mAh · 45 A
High-power, high-reliability 21700 cell from Molicel (E-One Moli Energy). Ideal for traction packs, robotics, tools, and performance battery builds requiring low impedance and robust thermal behavior.
- SOLD BY THE CASE · 200 pcs / case
- Authentic · direct from manufacturer
- Low impedance · high C-rate
- UN38.3 compliant (cell)
Counterfeit warning: The market has seen a surge in fake “Molicel” cells. These are guaranteed authentic, purchased directly from the OEM.
Why builders choose P42A
Real power headroom
Continuous 45 A discharge rating with strong pulse capability and stable thermal behavior.
4.2 Ah usable energy
4200 mAh nominal capacity in a 21700 can—solid energy density without giving up current.
Consistent manufacturing
Molicel’s automotive-grade process control yields tight spreads for pack matching and longevity.
Selection & pack design tips
Right-size your current
- Design continuous current per cell ≤ 45 A; leave thermal margin.
- Validate pulse loads, cooling, and duty cycle at the pack level.
- Match cells by IR/capacity for high-power assemblies.
Charging & safety
- Typical charge to 4.2 V; observe OEM current limits and temperature windows.
- Use a quality BMS for OV/UV/OT/OC protection and balancing.
- Observe UN38.3 / IATA packaging when shipping cells or packs.
Technical specifications
| Manufacturer | Molicel (E-One Moli Energy) |
|---|---|
| Model | P42A |
| Format | 21700 · Flat top |
| Nominal Capacity | 4200 mAh |
| Nominal Voltage | 3.6–3.65 V |
| Max Continuous Discharge | 45 A (cell-level; observe thermal limits) |
| Charge Voltage | 4.20 V (typical) |
| Discharge Cut-off | ~2.5 V (see datasheet) |
| Dimensions | ~21.4 mm Ø × 70.0 mm L |
| Weight | ~70 g |
| Country of Origin | Taiwan |
| Case Pack | 200 pcs (sold by the case) |
Always use the OEM datasheet for final limits, test conditions, and compliance notes.
Applications
Traction & mobility
Light EV, e-moto, karts, and performance packs requiring high current per cell.
Robotics & tools
AGVs/AMRs, drones (hybrid), and power tools with demanding pulses.
UPS / ESS modules
High-rate strings, starter-assist, and peak-shaving subpacks.
R&D / prototyping
Cell characterization and benchmarking against other 21700 platforms.
Ordering
- Unit: Case of 200 cells (factory carton)
- Availability: In stock (authentic OEM)
- Lead time: Ships in 2–3 business days
- Volume pricing: Contact us for pallet-level discounts
Downloads
Pack Calculator
Enter series (S) and parallel (P) to estimate pack metrics using per-cell specs (pre-filled for Molicel P42A).
Cell Parameters
Pack Topology
Assumptions: ideal wiring, no derating. Always validate against thermal path, duty cycle, BMS limits, and the OEM datasheet.
Results
FAQs
Are these cells authentic?
Yes. We purchase directly from Molicel/E-One Moli. Each case ships as received from the OEM.
Do you sell individual cells?
This listing is sold by the case (200 pcs). Contact us for project quantities or matched lots.
What BMS do you recommend?
For traction and ESS modules, we typically recommend Orion BMS families with appropriate limits and balancing strategy.
Couldn't load pickup availability
Pickup available at EVolve Electrics Office
Usually ready in 24 hoursPairs well with
Molicel P42A 21700 Cell - Qty 200
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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