Molicel INR18650-P30B 3000mAh 30A Flat Top Battery 2-Pack with Nitecore UI2 Dual-Slot Charger – Flagship High-Performance Power Kit for Flashlights & Drones

Why This Bundle

The Molicel P30B is built around one thing: delivering as much continuous power as possible from an 18650 cell without the voltage falling apart under load. A 30A continuous rating (36A max) paired with genuinely low internal resistance makes this one of the strongest power-to-energy cells in the 18650 format. A cell this capable deserves a charger that treats it right. This bundle pairs 2 genuine Molicel INR18650-P30B Flat Top batteries with the NITECORE UI2 — a compact, USB-C powered charger that automatically selects the right charging mode and includes trickle charging and over-discharge protection. Everything you need to charge and maintain your cells, ready out of the box.

Molicel INR18650-P30B (Flat Top) Specifications

Important: Molicel's own datasheet specifies that the P30B is not intended for e-cigarette or vaporizer applications. It's built and rated for power tools, RC/motorsports, and other high-drain pack use.

Note: This is a high-drain, unprotected cell — avoid mixing with batteries of a different brand, model, or charge state, and inspect the wrap for damage before every use to prevent short circuits.

The Charger: NITECORE UI2

• USB-C input: charge from any 5V power bank, solar panel, or USB adapter — great for travel and outdoor use
• Automatic CC/CV Charging: intelligently selects the most suitable charging mode for each cell
• Independent Dual-Bay Control: each of the 2 bays charges independently without affecting the other
• Trickle Charging: automatically switches to 100mA trickle mode for batteries below 2.9V, then up to 1000mA standard charging above 2.9V
• Over-Discharge Activation: automatically detects and reactivates over-discharged protected Li-ion cells
• Multiple Safety Protections: reverse-polarity/short-circuit protection, intelligent temperature control, and overcharge protection
• Ultra-Compact & Lightweight: just 79.5g, 125.5 × 59.5 × 32.1mm

NITECORE UI2 – Supported Battery Types & Voltage

Charges 3.6V/3.7V Li-ion/IMR batteries, including the Molicel P30B (18650) in this bundle:

10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14430, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22500, 22650, 25500, 26500, 26650

Output voltage: 4.2V±1% Output current: up to 1000mA per bay (max 2 bays simultaneously)

Compatibility Notes

The UI2's charging bays are open-ended, allowing Flat Top batteries to seat securely without any adapter. P30B Flat Top cells measure about 65.2mm, well within the UI2's compatible battery range.

Note: The UI2 charges at up to 1000mA per bay, which is below the P30B's 3A standard charge current. Expect a longer, gentler charge cycle — good for cell longevity, but budget extra time versus a high-current dedicated charger.

What's Included

• Molicel INR18650-P30B Flat Top Battery × 2
• NITECORE UI2 Charger × 1
• USB-C Charging Cable × 1
• User Manual × 1

Safety Tips

• Store batteries in a proper case, keeping them away from loose metal objects to prevent short circuits
• Never disassemble, puncture, burn, or submerge the batteries
• Charge only with a genuine, compatible charger such as the NITECORE UI2
• The P30B is an unprotected, ultra-high-power cell intended for compatible, purpose-built devices — do not use it in unauthorized or modified equipment
• Never discharge below 2.5V or charge above 4.2V

FAQ

Q: Can the NITECORE UI2 charge Molicel P30B Flat Top batteries safely? A: Yes. The UI2 automatically selects the optimal CC/CV charging mode for Li-ion cells like the P30B, with a 4.2V±1% output voltage and up to 1000mA per bay.

Q: Will Flat Top batteries sit properly in the UI2 charger bays? A: Yes. The UI2's open charging bays are designed to accommodate both Flat Top and Button Top cells without any adapter or modification.

Q: Can I charge both batteries at the same time? A: Yes. The UI2 has 2 independent bays, each capable of up to 1000mA, and one battery's charging status does not affect the other.

Q: Can I power the UI2 with a power bank while traveling? A: Yes. The UI2 has a USB-C input and works with any 5V power source, including power banks, solar panels, and USB wall adapters.

Q: What happens if a P30B battery has over-discharged? A: The UI2 includes an over-discharge activation feature that automatically detects and reactivates protected Li-ion cells that have dropped too low from storage or improper use. Note that the P30B is an unprotected cell, so always avoid discharging it below 2.5V in the first place.

Q: Is 30A continuous discharge safe for everyday devices? A: No — the P30B is an ultra-high-power cell intended strictly for devices specifically engineered for high continuous discharge, such as power tools, RC/motorsports builds, and high-drain battery packs. Always check your device's battery requirements before use.

Q: How does the P30B compare to the P28A? A: The P28A actually carries a slightly higher discharge rating on paper (35A vs. the P30B's 30A/36A max), but the P30B is Molicel's low-impedance follow-up — its internal resistance is roughly 60% lower than the P28A's, it supports faster 3C charging, and it holds voltage more steadily under sustained high-power loads. If raw sustained power delivery and fast charging matter more than squeezing out the last bit of capacity, the P30B is the newer, more refined option.

Q: What's in the box? A: 2 Molicel INR18650-P30B Flat Top batteries, 1 NITECORE UI2 charger, a USB-C charging cable, and a user manual.