EVE INR18650-33V 3300mAh Flat Top Li-ion Battery 2-Pack with XTAR MC2 USB Charger – Reliable High-Capacity Power Bundle for EDC Flashlights, Camping Lights & Portable Devices
Description
What's in This Bundle
- 2x EVE INR18650-33V, 3,200mAh, Flat Top
- 1x XTAR MC2 dual-slot USB-C charger
- 1x USB-C charging cable (included with the charger)
A ready-to-go starter kit for anyone who needs two matched, genuine mid-capacity 18650 cells and a compact way to charge them — no separate charger purchase, no guessing whether a charger you already own is a safe, appropriate match.
A note on naming: EVE also makes a related cell marketed as the "33VA," rated at 3,300mAh — a different, slightly higher-capacity SKU, not just a labeling variation of the 33V. Some resellers list the two inconsistently, so if you're comparing this listing against another site, check whether they mean the 3,200mAh 33V (this cell) or the 3,300mAh 33VA before assuming the specs match.
This listing is for Flat Top. Looking for Button Top? Click here to buy: EVE INR18650-33V Button Top + XTAR MC2 Bundle.
Why This Pairing Makes Sense
The 33V is EVE's NCM (nickel-cobalt-manganese) mid-capacity 18650, built for applications needing a solid balance of runtime and discharge capability — e-bikes, portable power tools, AGVs, and general battery pack builds. It carries a genuine 10A continuous discharge rating alongside its 3,200mAh capacity. Flat Top is the standard terminal type for most current devices — DIY packs, tool battery builds, and equipment that doesn't rely on spring-loaded contacts. Buying two cells together as a matched pair means you're starting with cells from a similar batch, which matters for anything that runs cells in series or expects consistent performance between them.
The XTAR MC2 pairs well here because it charges both slots at a full 1A simultaneously, with no current-splitting trade-off for using both bays at once.
EVE INR18650-33V — Battery Specs
| Parameter | Value |
|---|---|
| Brand & Model | EVE Energy INR18650-33V |
| Chemistry | NCM (nickel-cobalt-manganese) |
| Capacity | 3,200mAh nominal (3,100mAh minimum) |
| Nominal Voltage | 3.6V |
| Max Charge Voltage | 4.2V |
| Standard Charge | CC-CV, 0.5C (~1.6A), 0.02C cutoff |
| Discharge Cutoff Voltage | 2.5V |
| Max Continuous Discharge | 10A (3C) |
| AC Internal Resistance | ≤30mΩ |
| Charge Temperature | 0°C to 55°C |
| Discharge Temperature | -20°C to 70°C (cell surface) |
| Cycle Life | ~800-1,000 cycles to 70% capacity (varies by source/test conditions) |
| Terminal Type | Flat Top |
| Protection Circuit | None (unprotected cell) |
| Weight | 48g max |
| Cell Dimensions | Diameter ~18.35mm, Height 65mm |
These are genuine cells verified against EVE's official datasheet, not rewrapped or relabeled stock — and specifically the 3,200mAh 33V, not the related 3,300mAh 33VA.
This listing is for Flat Top. For Button Top, click here
XTAR MC2 — Charger Specs
| Parameter | Value |
|---|---|
| Input | Type-C, 5V⎓2A |
| Charging Current | 1A per slot — both slots simultaneously, no splitting |
| Charging Method | 3-stage charging (trickle → constant current → constant voltage), 2 independent slots with automatic detection |
| End-of-Charge Voltage | 4.2V ±0.05V |
| End-of-Charge Current | <130mA cutoff |
| Operating Temperature | 0°C to 40°C |
| Dimensions | L103mm x W53mm x H30mm |
| Weight | 54g |
| Compatible Cell Sizes | 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650 (3.6V/3.7V Li-ion), including protected 21700 cells |
| Extra Feature | "0V" activation technology — can recover some over-discharged cells |
| Status Indicators | Green = standby/fully charged, Red = charging, Off/unlit = reverse polarity or abnormal insertion |
| Safety | Reverse polarity protection, short-circuit protection, 3-stage charge control |
A realistic note on charge time: the 33V's own standard charge current is roughly 1.6A (0.5C), somewhat above the MC2's 1A per slot — expect a full charge in roughly 3.5-4 hours, both cells at once, a safe and conservative rate relative to the cell's spec.
Where the 33V Actually Fits
- E-bike and e-scooter packs — one of EVE's core application areas for this cell
- AGVs, portable vacuums, and balance boards — moderate-drain equipment needing solid runtime
- Power tool packs in parallel/series configurations
- Portable energy storage and general electronics packs where 10A per cell is sufficient
Not the right choice for sub-ohm mechanical mods, or anything regularly demanding more than 10A per cell — for those, a dedicated high-drain cell like the Samsung 25R or 30Q is a better match.
Things Worth Knowing Before You Use This Kit
- This is an unprotected cell. The charger enforces its own voltage and current cutoffs, but your device still needs to handle discharge-side protection.
- Don't mix these cells with older ones you already own, even if they're also labeled 33V. Confirm you're not mixing a 33V with a 33VA, since they're different capacity ratings despite the similar name.
- Flat Top won't work in devices that specifically require Button Top cells — check your device's battery compartment before ordering if you're not sure which terminal type it needs.
- 10A is a real ceiling. Don't use these in devices that regularly demand more current than that.
Frequently Asked Questions
Is this the 3,200mAh or 3,300mAh version? This listing is the EVE 33V, rated at 3,200mAh nominal (3,100mAh minimum) per EVE's official datasheet. The 3,300mAh cell is a related but distinct SKU marketed as the "33VA" — if you need that specific capacity, confirm with us before ordering.
Can this charger handle the 33V's full capacity safely? Yes. The MC2's 1A per slot is a safe rate relative to this cell's roughly 1.6A standard charge current — a full charge takes roughly 3.5-4 hours, both cells at once.
Will Flat Top cells work in my device? If your device uses spring-loaded, flat, or magnetic-style contacts without a raised positive terminal requirement, Flat Top is the correct choice. If your device specifically calls for Button Top (a raised positive terminal), you'll want that version instead.
Can I charge two different battery sizes at once? Yes — the MC2's two slots operate independently with automatic size and chemistry detection, so you could charge one 18650 and a differently-sized cell (like a 21700) at the same time if needed.
What does the "0V activation" feature do? It lets the charger attempt a slow, controlled charge on cells drained deep enough that a standard charger would refuse to recognize them at all. It won't save every over-discharged cell, but it can recover some that would otherwise be written off.
In stock now. This bundle ships as a matched pair of genuine EVE INR18650-33V Flat Top cells with a verified XTAR MC2 charger — ready for e-bike packs, power tools, and general electronics builds out of the box.
Authentic EVE Cells – sourced from official distributors. No rewraps, no fakes.
Fast & Tracked Shipping (US/EU/UK/AU/CA).
30-Day Satisfaction Guarantee.
Shipping and Returns
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Free Shipping: Enjoy free shipping on all orders over $65. For orders under $65, the shipping cost is $8.99.
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Delivery Time: Once shipped, orders typically arrive within 7–15 business days.
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Easy Returns: We want you to be completely satisfied. If you're not, you can return your product within 30 days of receiving your order. Please ensure the items are unused and in their original condition. For return instructions, please contact our support team.
Payment & Security
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Security
No dents or scratches. Wraps are decent quality. Good first impression.
No connection issues in my Convoy lights. Springs make good contact.
Keep these as spares for my primary cells. Performs well when called upon.
EVE 3300mAh flat tops and MC2. Perfect for everyday carry flashlights.
Researched before buying. EVE Energy is a major manufacturer. Not a rewrap.
Refund Policy
OneAndes Return & Refund Policy
At OneAndes, we are committed to providing high-quality cylindrical lithium-ion batteries for your drones, vacuums, garden tools, and other power needs. If you are not completely satisfied with your purchase, we are here to help. Please read our full return policy below before initiating a return.
1. Return Window
You have 30 calendar days from the date you received your item(s) to request a return. Any return request submitted after 30 days will not be eligible for a refund or exchange.
2. Eligibility Conditions
To qualify for a return, all items must meet the following conditions:
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Condition: Items must be unused, undamaged, and in the same condition that you received them.
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Packaging: Items must be returned in their original packaging with all accessories, manuals, and protective covers intact.
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Proof of Purchase: A valid receipt, order confirmation email, or proof of purchase must accompany all returns.
Non-Returnable Items:
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Batteries that have been installed, used, or show any signs of wear.
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Items marked as “Final Sale” or “Clearance” at the time of purchase.
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Customized or special-order products.
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Gift cards.
If a returned item fails to meet these conditions, we reserve the right to deny the return or charge a restocking fee.
3. How to Initiate a Return
Follow these steps to return your product:
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Contact Us: Email our support team at support@oneandes.com with your order number and the reason for return. We aim to respond to all return requests within 24 hours on business days.
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Receive RMA: We will provide you with a Return Merchandise Authorization (RMA) number and return instructions. Do not ship any item without an RMA number.
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Pack Securely: Place the item in its original packaging, include all accessories, and clearly write the RMA number on the outside of the box.
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Ship to Our US Warehouse: Ship the package to the following address:
OneAndes Returns
10320 6th St
Rancho Cucamonga, CA 91730
USA*Important: Lithium-ion batteries are classified as hazardous materials (Class 9). Please follow the shipping guidelines provided in Section 4 below. We recommend using a trackable shipping service and purchasing shipping insurance, as we cannot guarantee receipt of your returned item.*
4. Return Shipping Costs
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Defective or Incorrect Items: If the item you received is defective, damaged in transit, or different from what you ordered, OneAndes will cover the return shipping cost. In this case, we will provide you with a prepaid return shipping label.
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Buyer’s Remorse / Non-Defective Returns: If you are returning an item for any other reason (e.g., no longer needed, ordered the wrong model), you are responsible for the return shipping costs. You must prepay the return shipping cost using a trackable carrier that accepts lithium batteries. We do not provide prepaid return labels for non-defective returns.
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Lithium Battery Shipping Regulations: By law, all returns must be shipped in compliance with applicable dangerous goods regulations. We will provide guidance on proper packaging and labeling. Failure to comply may result in carrier refusal, seizure, or additional fees. We are not responsible for returned items lost or rejected by the carrier due to improper shipping.
5. Refunds
Once we receive and inspect your return at our Rancho Cucamonga, CA facility, we will notify you via email of the approval or rejection of your refund.
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Approved Refunds: If approved, your refund will be processed to your original method of payment within 5 to 10 business days. Please note that depending on your bank or credit card issuer, it may take additional time for the credit to appear on your statement.
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Partial Refunds: In certain situations, only partial refunds may be granted:
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Items not in original condition, missing parts, or damaged for reasons not due to our error.
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Items returned more than 30 days after delivery (reviewed on a case-by-case basis).
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Non-Refundable Fees: Original shipping charges are non-refundable unless the return is due to our error (defective product or incorrect shipment).
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Restocking Fee: We do not charge a restocking fee for defect-free returns, but we may deduct the return shipping cost, which will be deducted from your refund.
6. Exchanges
We replace items only if they are defective or damaged upon arrival. If you need to exchange a defective item for the same product, please contact us at support@oneandes.com. Exchanges are subject to product availability.
If you ordered the wrong battery size or model, please follow the standard return process above and place a new order for the correct item.
7. Damaged or Missing Items
If your package arrives visibly damaged, please take photos of the package before opening and contact us immediately. We will work with the shipping carrier to file a claim and arrange for a replacement or refund. Damaged or missing item claims must be reported within 7 calendar days of delivery. For immediate assistance, you may also call us at (213) 316-8849.
8. Order Cancellation
You may cancel your order without penalty if it has not yet been shipped. To cancel, email us at support@oneandes.com as soon as possible. If the order has already been processed or shipped, you will need to follow the standard return process upon receipt.
9. Warranty
All OneAndes batteries are backed by a 12-month limited warranty against defects in materials and workmanship. This warranty does not cover damage caused by misuse, improper charging, unauthorized modifications, normal wear and tear, or use outside of manufacturer specifications. For warranty claims, please contact our support team.
10. Contact Us
If you have any questions about our Return & Refund Policy, please reach out:
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Email: support@oneandes.com
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Phone: (213) 316-8849 (Mon-Fri, 9 AM – 5 PM Pacific Time)
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Mailing Address: 10320 6th St, Rancho Cucamonga, CA 91730, USA
We aim to respond to all inquiries within 24 hours during business days. Please include your order number for faster assistance.