Samsung 30Q 3000mAh 15A Button Top Battery 8-Pack with XTAR VC8 8-Slot Charger – High-Drain Power Station for Flashlights & High-Output Hobbies
Description
What's in This Bundle
- 8x Samsung INR18650-30Q, 3000mAh, Button Top
- 1x XTAR VC8 8-slot LCD USB-C charger
- USB-A to USB-C charging cable and user manual included
A complete kit for anyone running an 8-cell device or building a larger pack — eight matched, genuine 30Q cells paired with a charger built specifically for handling a full set like this, with independent circuitry per slot and real capacity diagnostics.
This listing is for Button Top. Looking for Flat Top? Click here to buy: Samsung 30Q Flat Top + XTAR VC8 Bundle.
Why This Pairing Makes Sense
Eight 30Qs bought together as a matched set means consistent capacity and internal resistance across the whole group — the more cells you're combining into a pack, the more a single mismatched cell can drag down overall performance, so buying and verifying a matched set matters even more here than it does for smaller bundles. Button Top is the terminal type required by devices with spring-loaded battery contacts.
The XTAR VC8 is built around eight fully independent charging circuits — XTAR describes each slot as functioning like its own small charger, so one slot's charging behavior doesn't affect the others. It also runs a genuine capacity-test (grading) mode on four of its eight slots, letting you verify real measured capacity rather than just trusting the printed rating.
Samsung 30Q — Battery Specs
| Parameter | Value |
|---|---|
| Brand & Model | Samsung SDI INR18650-30Q |
| Capacity | 3,000mAh (minimum ~2,900mAh) |
| Nominal Voltage | 3.6V |
| Full Charge Voltage | 4.2V |
| Discharge Cutoff Voltage | 2.5V |
| Max Continuous Discharge | 15A |
| Terminal Type | Button Top |
| Protection Circuit | None (unprotected cell) |
| Weight | ~45-48g per cell |
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 VC8 — Charger Specs
| Parameter | Value |
|---|---|
| Input | Type-C, QC3.0 (5V⎓2A / 9V⎓2A) |
| Charging Current (CC) | 3A×1 / 2A×2 / 1A×4 / 0.5A×8 / 0.25A×8 — adjustable, current per slot depends on how many slots are in use |
| Manual Current Gears | 250mA or 500mA with all 8 slots occupied; 1000mA with 4 slots occupied; up to 2000mA on CH1/CH8 specifically |
| Charging Method | TC-CC-CV 3-stage charging (trickle wake-up → constant current fast charge → constant voltage top-off) |
| Cut-off Voltage | 4.20V ±0.05V (Li-ion) / 1.45V ±0.1V (Ni-MH/Ni-Cd) |
| Cut-off Current | ≤120mA |
| Operating Temperature | 0°C to 40°C |
| Dimensions | L194mm x W134mm x H34mm |
| Net Weight | 350g |
| Display | Dual VA LCD screens showing real-time voltage, current, capacity, and internal resistance across all 8 slots |
| Special Modes | Capacity/grading mode (charge → discharge → recharge to verify true capacity) — available on CH1-CH4 only; storage mode (available across slots) |
| Compatible Cell Sizes | 3.6V/3.7V Li-ion: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650. 1.2V Ni-MH/Ni-Cd: AAAA, AAA, AA, A, SC, C, D. Supports protected 20700/21700 cells |
| Extra Feature | "0V" activation — can recover some over-discharged cells |
| Safety | Overvoltage, overcurrent, short-circuit, overcharge, and reverse-polarity protection; real-time internal temperature monitoring for stable heat management during full 8-slot use |
| Certifications | RoHS, CE, FCC |
An important note on the grading/capacity test mode: only CH1 through CH4 support the charge-discharge-recharge capacity test — the other four slots (CH5-CH8) handle standard charging only. If verifying real measured capacity across all eight cells matters to you, plan to run them through CH1-CH4 in two batches of four rather than expecting all eight slots to test simultaneously.
A realistic note on charge time: with all 8 slots occupied, the VC8's default charging current is 0.5A per slot (adjustable down to 0.25A if you prefer an even gentler rate). At 0.5A, a full charge for all eight 30Qs takes roughly 6.5-7 hours. That's slower per-cell than a 4-slot charger running at 1A, which is the trade-off for charging twice as many cells from one unit — CH1 and CH8 can individually push higher current (up to 2A or 3A) if you're not using all 8 slots at once.
Where This Bundle Actually Fits
- 8-cell flashlights, lanterns, and larger DIY builds — devices or packs designed around a full set of eight cells
- Power tool and e-bike battery packs where you're assembling from a larger verified batch
- Builders who want ongoing diagnostic capability — the VC8's grading mode (CH1-CH4) is useful well beyond this one purchase, for testing any future cells you pick up
- Mixed-chemistry households — since the VC8 also handles Ni-MH/Ni-Cd cells (AA, AAA, C, D, etc.) with automatic detection, it can pull double duty beyond just 18650s
Things Worth Knowing Before You Use This Kit
- The 30Q 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 30Q — run a batch through CH1-CH4's grading mode first if you want to check consistency before combining.
- Only CH1-CH4 support capacity grading. Keep that in mind if you're planning to test all eight cells before a pack build.
Frequently Asked Questions
Can all 8 cells charge at once? Yes — all 8 slots operate independently and can charge simultaneously, though the per-slot current drops to 0.5A (or less) when all 8 are occupied, compared to higher rates available with fewer slots in use.
Can this charger test the real capacity of all 8 cells? Only four at a time. CH1-CH4 support the grading (capacity test) mode; CH5-CH8 handle standard charging only. Run your first four cells through CH1-CH4, then swap in the remaining four for a second round if you want all eight tested.
Does this charger work with rechargeable AA/AAA batteries too? Yes — the VC8 automatically detects Ni-MH/Ni-Cd chemistry and applies the appropriate charging strategy alongside Li-ion cells, across sizes from AAAA up to D and C.
What happens if I insert a cell backwards? The charger's reverse-polarity protection stops that slot from charging and flags the issue rather than attempting to force a charge.
Is this kit protected-cell compatible? The VC8 supports protected 20700/21700 cells if you use it for those later. The Samsung 30Q cells included in this bundle are unprotected bare cells, which is standard for this model.
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 set of eight genuine Samsung 30Q Button Top cells with a verified XTAR VC8 charger — independent 8-slot charging with real capacity diagnostics, ready for larger 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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Security
If you run multiple high-drain devices, this Samsung 30Q 8-pack with VC8 is the ultimate power management solution for serious enthusiasts.
I can quickly scan all eight cells for internal resistance changes. The VC8 makes preventative battery maintenance simple and efficient.
With 8 cells, I have two full sets for my dual-battery devices plus a complete backup set. The VC8 charges everything overnight.
My collection of high-wattage mods all run on 30Q cells. With 8 cells in rotation, I never have to wait for batteries to charge.
I rebuilt several cordless tool batteries with these 30Q cells. The 15A discharge handles the demands and the 3000mAh provides good runtime.
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.