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.
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