Samsung 35E 3500mAh 8A Button Top Battery 6-Pack with XTAR VC4SL & MC1 Chargers – Complete Long-Run Power Kit for Flashlights, Camping Gear & Outdoor Adventures
Description
What's in This Bundle
- 6x Samsung INR18650-35E, 3,450mAh, Button 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 Button Top. Looking for Flat Top? Click here to buy: Samsung 35E Flat Top +XTAR VC4SL+XTAR MC1 Bundle.
Why This Pairing Makes Sense
The 35E is Samsung's energy-focused 18650 — it trades discharge headroom for capacity, making it a better fit for devices that draw moderate, steady current rather than sharp bursts: power banks, UPS backups, low-drain flashlights, and similar gear. Six cells bought together as a matched set means consistent capacity and internal resistance across the whole group, which matters for anything running cells in series or parallel. Button Top is the terminal type required by devices with spring-loaded battery contacts.
The VC4SL handles the bulk of the charging with its LCD display and capacity-test (grading) mode, so you can verify all six cells' real performance in batches of four. 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.
Samsung 35E — Battery Specs
| Parameter | Value |
|---|---|
| Brand & Model | Samsung SDI INR18650-35E |
| Capacity | 3,450mAh nominal (Samsung's own minimum spec: ≥3,350mAh standard discharge) |
| Nominal Voltage | 3.6V |
| Full Charge Voltage | 4.2V |
| Discharge Cutoff Voltage | 2.65V |
| Max Continuous Discharge | 8A |
| Max Charge Current | 2A (2,000mA) — standard charge is 1,700mA |
| Internal Impedance | ≤35mΩ (AC, 1kHz, initial) |
| Terminal Type | Button Top |
| Protection Circuit | None (unprotected cell) |
| Weight | ~48-50g per cell |
This is an energy-density cell, not a high-drain one — its 8A continuous rating is meaningfully lower than cells like the 30Q or 25R. These are genuine cells verified against Samsung's official datasheet, not rewrapped or relabeled stock.
This listing is for Button Top. For Flat 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 | 3.6V/3.7V Li-ion: 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, flat-top 32650. 1.2V Ni-MH/Ni-Cd: AAA, AA, A, SC, C. Supports protected 20700/21700 cells; spring-loaded slots can also fit two 32650s and two 18650s at once |
| 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: the 35E's max charge current is 2A, comfortably above the 1A per slot both the VC4SL and MC1 deliver — plenty of margin, not a cell being pushed to its limit. With the VC4SL running 4 cells and the MC1 running a 5th, you can have 5 of your 6 cells charging simultaneously in roughly 4-4.5 hours. The 6th cell either waits for a slot to open up or gets its turn on the MC1 afterward.
Where This Bundle Actually Fits
- Power banks and backup power builds — steady, moderate draw is exactly what this cell is built for
- 6-cell UPS and emergency backup packs — capacity matters more than burst current in this use case
- Low-to-moderate output flashlights and headlamps run as a matched set of six
- DIY packs (2S3P, 3S2P, 6S, etc.) where matched internal resistance across all six cells genuinely matters
Not the right fit for sub-ohm high-output flashlights on turbo, or power tools — those applications need more discharge headroom than the 35E is rated for. If that's your use case, look at the 30Q or 25R instead.
Things Worth Knowing Before You Use This Kit
- The 35E 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 35E — run them through the VC4SL's grading mode first if you want to check consistency.
- Don't put these in a high-drain device expecting 30Q or 25R-level current. The 35E's 8A ceiling is a real limit, not a conservative underrating.
- 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
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. This bundle is built to efficiently cover 6 cells, not to charge all 6 in parallel at once.
Why is the 35E's discharge rating so much lower than other Samsung 18650 cells? It's a design trade-off, not a flaw. Samsung built the 35E to prioritize capacity over current delivery, which is why it holds more energy (3,450mAh) than cells like the 30Q (3,000mAh) or 25R (2,500mAh) but delivers less continuous current (8A vs. 15A or 20A).
Why include the MC1 instead of just selling 6 cells with only the VC4SL? Without a second charger, you'd be left manually rotating 2 cells through the VC4SL's 4 slots. The MC1 fills that gap with a genuinely useful, portable charger you'll likely find uses for beyond this bundle.
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 Samsung 35E 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 Samsung 35E Button Top cells with a verified XTAR VC4SL and XTAR MC1 charger combo — ready for power banks, backup packs, and other moderate-drain builds out of the box.
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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If you are responsible for group power management, this Samsung 35E 6-pack kit provides the capacity and tools needed for professional outdoor leadership.
If you need maximum runtime 18650 power for extended adventures, this Samsung 35E 6-pack with dual chargers is the most complete solution.
I can charge a spare cell from my portable solar panel during the day. The MC1 makes off-grid charging from renewable energy simple.
The included MC1 single-bay charger weighs almost nothing. I take it on solo trips where every gram counts for keeping my headlamp powered.
My camera intervalometer runs on these 35E cells. The 3500mAh provides extended power for multi-day time-lapse projects in remote locations.
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.