What's in This Bundle
- 6x EVE INR18650-35V, 3,500mAh, Flat Top
- 1x XTAR VC4SL 4-slot LCD USB-C charger
- 1x XTAR MC1 single-slot USB-C charger
- Cables, manuals, and storage pouch included with both chargers
This bundle exists because there's no clean single charger that handles exactly 6 cells at once. Rather than force you into a mismatched combo, we've paired the 4-slot VC4SL with the compact single-slot MC1 — together they give you 5 charging slots, so 5 of your 6 cells can charge at the same time, with the last one following right behind.
This listing is for Flat Top. Looking for Button Top? Click here to buy: EVE INR18650-35V Button Top + XTAR MC4S 4 + XTAR MC1 Bundle.
Why This Pairing Makes Sense
The 35V is EVE's high-capacity 18650, built for applications that prioritize runtime and energy density while still holding a genuine 10.2A continuous discharge rating — a step up in current capability from purely energy-focused cells while still delivering strong capacity. Six cells bought together as a matched set means consistent capacity and internal resistance across the whole group. Flat Top is the standard terminal type for most current devices — DIY packs, work lights, and equipment that doesn't rely on spring-loaded contacts.
The VC4SL handles the bulk of the charging with its LCD display and capacity-test (grading) mode. The MC1 rounds things out as a small, genuinely portable single-slot charger — useful on its own for topping off a spare cell, throwing in a bag, or keeping in the car, not just as filler to hit a slot count.
EVE INR18650-35V — Battery Specs
| Parameter |
Value |
| Brand & Model |
EVE Energy INR18650-35V |
| Capacity |
3,500mAh nominal (3,400mAh minimum) |
| Nominal Voltage |
3.6V |
| Max Charge Voltage |
4.20V ±0.005V |
| Standard Charge |
CC-CV, 0.68A, 68mA cutoff |
| Discharge Cutoff Voltage |
2.5V |
| Max Continuous Discharge |
10.2A |
| AC Impedance |
<30mΩ (1kHz) |
| Charge Temperature |
0°C to 50°C (cell surface) |
| Discharge Temperature |
-20°C to 60°C (cell surface) |
| Storage Temperature |
0°C to 60°C |
| Energy Density |
743 Wh/L volumetric, 252 Wh/kg gravimetric |
| Terminal Type |
Flat Top |
| Protection Circuit |
None (unprotected cell) |
| Weight |
≤50g (typically ~47g measured) |
| Cell Dimensions |
Diameter 18.35mm, Height 65.10mm |
These specs are consistent across EVE's official datasheet and multiple authorized distributors — the 10.2A discharge figure in particular shows up reliably across sources, without the kind of discrepancy we've flagged on some other cells in this category.
This listing is for Flat Top. For Button Top click here
XTAR VC4SL — Charger Specs (4 Slots)
| Parameter |
Value |
| Input |
Type-C, QC3.0 (9V⎓2A) |
| Charging Current (CC) |
3A×1 / 2A×2 / 1A×4 / 0.5A×4 / 0.25A×4 |
| Charging Method |
3-stage charging (trickle → constant current → constant voltage), 4 independently monitored slots |
| Cut-off Voltage |
4.2V ±0.05V (Li-ion) / 1.45V ±0.1V (Ni-MH/Ni-Cd) |
| Cut-off Current |
≤120mA |
| Operating Temperature |
0°C to 40°C |
| Dimensions |
L156mm x W115mm x H35mm |
| Net Weight |
212g |
| Display |
Color LCD — capacity, current, and internal resistance readouts per slot |
| Special Modes |
Capacity/grading mode, storage mode, standard charge mode |
| Compatible Cell Sizes |
10440 through 26650, flat-top 32650, plus 1.2V Ni-MH/Ni-Cd (AAA/AA/A/SC/C); supports protected 20700/21700 |
| Safety |
Reverse polarity protection ("Err" display, 0V shown), auto cut-off, multiple charge protections |
XTAR MC1 — Charger Specs (1 Slot)
| Parameter |
Value |
| Input |
Type-C, 5V⎓1A |
| Charging Current |
1A (single slot, constant current) |
| Charge Cut-off Voltage |
4.2V ±0.05V |
| Charge Cut-off Current |
<130mA |
| Operating Temperature |
0°C to 40°C |
| Dimensions |
L103mm x W25mm x H30mm |
| Net Weight |
27g |
| Charging Method |
3-stage charging (trickle → constant current → constant voltage), automatic Li-ion detection |
| Compatible Cell Sizes |
3.6V/3.7V Li-ion: 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650; supports protected 21700 |
| Extra Feature |
"0V" activation technology — attempts recovery on over-discharged cells |
| Status Indicator |
Green = standby/fully charged, Red = charging, Off = reverse polarity or abnormal insertion |
| Safety |
Intelligent detection, auto cut-off, overcurrent/overcharge/overvoltage/short-circuit/reverse-polarity protection, soft-start |
| Package Includes |
MC1 charger, USB-C cable, user manual |
A realistic note on charging all 6: EVE's own quoted standard charge current for this cell is a conservative 0.68A — both the VC4SL (1A per slot) and the MC1 (1A) are actually faster than that reference rate, while still being a safe, moderate current for a 3,500mAh cell. Expect a full charge in roughly 4-4.5 hours for the 5 active slots, with the 6th following once a slot opens up.
Where the 35V Actually Fits
-
High-capacity flashlights and headlamps — strong runtime with enough current for moderate-to-high output modes
-
E-bike and e-scooter packs where 10.2A per cell in parallel is sufficient
-
6S, 2S3P, 3S2P, or similar DIY pack configurations prioritizing energy density
-
Backup power and portable electronics built from a verified, matched set of six
Not the right choice for sub-ohm mechanical mods, or anything regularly demanding more than 10.2A 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. Both chargers enforce their 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 35V.
-
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.
-
10.2A is a real ceiling. Don't use these in devices that regularly demand more current than that.
-
The MC1 charges one cell at 1A — it's not meant to replace the VC4SL for bulk charging, just to round out the slot count and serve as a lightweight backup charger.
Frequently Asked Questions
Is this the same as the Samsung 35E? No — different brand, different cell. This listing is EVE's INR18650-35V. If you specifically need the Samsung INR18650-35E, check our separate listing for that cell.
Can all 6 cells charge at the same time? 5 of the 6 can charge simultaneously — 4 on the VC4SL, 1 on the MC1. The 6th cell follows once a slot frees up.
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 this charger tell me if a cell is underperforming? Yes — the VC4SL's grading mode charges, discharges, and recharges a cell while measuring actual delivered capacity, rather than relying on the printed rating.
Is this kit protected-cell compatible? Both chargers support protected 21700 cells (the VC4SL also supports protected 20700) if you use them for those later. The EVE 35V cells included in this bundle are unprotected bare cells, standard for this model.
In stock now. This bundle ships as a matched set of six genuine EVE INR18650-35V Flat Top cells with a verified XTAR VC4SL and XTAR MC1 charger combo — ready for high-capacity flashlights, e-bike packs, and general electronics out of the box.
