2-Pack Vapcell D30 26650 3000mAh 3.2V LiFePO4 50A CDR Flat Top Battery – Ultra High Drain for Jump Starters, RC & Power Tools
Description
Description
Experience extreme power and unmatched safety with the Vapcell D30, a 26650 LiFePO4 (lithium iron phosphate) cell engineered for the most demanding high-drain applications. This 2-pack delivers a staggering 50A continuous discharge with a nominal 3.2V, making it the definitive choice for automotive jump starters, RC engine starters, high-torque power tools, and DIY battery projects where instantaneous current and thermal stability are critical. With a cycle life exceeding 2000 charges and inherent resistance to thermal runaway, the D30 outperforms traditional lithium-ion cells in both longevity and safety. Important: This is a 3.2V LiFePO4 cell—it requires a dedicated LiFePO4-compatible charger and is not compatible with standard 3.7V lithium-ion devices or chargers.
Key Features
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50A True Continuous Discharge (CDR) – Massive, stable current for extreme applications. Handles engine starter surges, high-torque tool loads, and pulse applications effortlessly. Ultra-low internal resistance ensures minimal voltage sag.
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LiFePO4 (Lithium Iron Phosphate) Chemistry – Inherently safer than traditional Li-ion. Exceptional thermal stability virtually eliminates fire risk. Delivers over 2000 charge cycles, dramatically outlasting standard cells.
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3000mAh / 3.2V Nominal – Optimized for high-current delivery. Note the 3.2V nominal voltage—not compatible with standard 3.7V devices. Total energy approximately 9.6Wh.
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26650 Form Factor – Larger diameter (26.5mm) for superior current handling and heat dissipation. Always verify your device accepts 26650 cells.
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Flat Top Design – Ideal for building custom high-current battery packs with spot-welded nickel strips. Compatible with spring-contact devices designed for flat top 26650 cells.
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Critical Charger Requirement – Must use a charger with LiFePO4 / 3.2V mode. Standard 3.7V lithium-ion chargers will not charge correctly and may damage the cell.
Parameters
| Parameter | Specification |
|---|---|
| Model | Vapcell IFR26650 D30 |
| Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Form Factor | 26650 |
| Nominal Voltage | 3.2 V |
| Charge Voltage (Max) | 3.65 V ± 0.05 V |
| Typical Capacity | 3000 mAh (0.5C discharge to 2.0V) |
| Max Continuous Discharge (CDR) | 50 A |
| Max Pulse Discharge | Up to 80 A+ (short burst, monitor temperature) |
| Discharge Cut-off Voltage | 2.0 V |
| Standard Charge | CC-CV, 0.5C (1500 mA) to 3.65 V, cut-off 30 mA |
| Max Charge Current | 1C (3000 mA) |
| Internal Resistance | ≤ 12 mΩ (extremely low) |
| Cycle Life | ≥ 2000 cycles (to 80% capacity) |
| Operating Temperature (Discharge) | -20°C to 60°C |
| Charging Temperature | 0°C to 45°C |
| Top Type | Flat Top |
| Dimensions | Approx. 26.5 mm diameter × 65.5 mm length |
| Weight (single cell) | Approx. 85 g |
| Package Includes | 2 × Vapcell D30 26650 cells in protective packaging |
Applications
Recommended For
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Automotive Jump Starters & Portable Power: The 50A CDR and LiFePO4 safety make this ideal for 12V (4S) jump starter packs. Deliver hundreds of amps to start vehicles reliably and safely.
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RC Engine Starters & Glow Plugs: Instantaneous high current for starting nitro and gas RC engines. Consistent power delivery without sag.
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High-Torque Cordless Power Tools: Build or rebuild heavy-duty tool battery packs (4S–5S configurations). The D30 handles angle grinders, impact wrenches, and circular saws with ease.
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DIY High-Current Battery Packs: Spot welders, portable inverters, and any project requiring reliable, ultra-high-rate discharge with superior safety.
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High-Power Lighting Systems: HID spotlights, professional cinema lighting, and custom flashlight builds that demand sustained high current.
Not Recommended For
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Standard 3.7V Lithium-Ion Devices: The D30's 3.2V nominal voltage is incompatible with most consumer flashlights, power banks, and electronics designed for 3.6V/3.7V cells. Device may not power on or may show low battery.
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Standard 3.7V Lithium-Ion Chargers: Must use a charger with dedicated LiFePO4 (3.2V) mode. Using a standard 3.7V charger will overcharge and permanently damage the cell.
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18650 or 21700 Devices: The 26650 format is larger (26.5mm diameter). Verify compatibility before ordering.
FAQ
Q: Can I use this battery in my regular 18650 or 21700 flashlight?
A: No, for two critical reasons. First, this is a 26650 cell (26.5mm diameter)—it is physically larger and will not fit in 18650 or 21700 battery compartments. Second, this is a 3.2V LiFePO4 cell. Most consumer flashlights are designed for 3.7V lithium-ion cells. Using a 3.2V battery may result in the light not turning on, low brightness, or a persistent low-battery warning.
Q: Can I charge this with my regular lithium-ion charger?
A: No. You must use a charger that specifically supports LiFePO4 batteries (3.2V mode). Standard 3.7V lithium-ion chargers charge to 4.2V, which will dangerously overcharge a LiFePO4 cell (max charge voltage 3.65V), causing permanent damage and potential safety hazards. Always verify your charger has a dedicated LiFePO4 setting before use.
Q: What are the advantages of LiFePO4 over regular Li-ion?
A: LiFePO4 offers three key advantages: Safety (excellent thermal stability, virtually no fire/explosion risk), Longevity (2000+ cycles vs. 250–500 for typical Li-ion), and High Discharge Capability (lower internal resistance for cleaner high-current delivery). The trade-offs are lower nominal voltage (3.2V vs. 3.7V) and lower energy density (less capacity for the same size).
Q: Why is the capacity only 3000mAh? That seems low for a 26650.
A: The D30 prioritizes current delivery and safety over maximum capacity. The 3000mAh capacity, combined with the 3.2V voltage, provides approximately 9.6Wh of energy. This cell is designed for applications that need extreme current bursts (50A+) where standard high-capacity cells would fail or overheat. For maximum runtime at lower currents, consider a high-capacity 26650 like the Vapcell K62 (6200mAh/15A) instead.
Q: Can I build a 12V jump starter with this 2-pack?
A: A 12V jump starter requires a 4S configuration (4 cells in series = 12.8V nominal). This 2-pack provides two cells; you would need two additional D30 cells (4 total) to build a proper 12V jump starter pack. Always use matched cells, a properly rated LiFePO4 BMS, and heavy-gauge nickel strips or bus bars for the high currents involved.
Q: How should I store these cells when not in use?
A: Store at approximately 3.2–3.3V (50–70% charge for LiFePO4) in a cool, dry place. Use non-conductive battery cases to prevent accidental short circuits. LiFePO4 cells have an exceptionally low self-discharge rate, making them ideal for emergency equipment that sits idle for long periods.
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 want the safety of LiFePO4 chemistry without sacrificing power, the Vapcell D30 delivers 50A with complete peace of mind.
The Vapcell D30 with 50A discharge is the ultimate cell for portable jump starters. Starts engines reliably in all conditions.
I use these in my portable solar generator. The LiFePO4 chemistry handles daily cycling perfectly with excellent longevity.
I ran a discharge test at 50A and the temperature stayed under 58¡ãC. The D30 handles extreme current with incredible thermal management.
I keep one of these D30-based jump starters in each of my vehicles. Reliable starting power in a compact package.
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.
