4-Pack TianPeng 21700-50XG 5000mAh 40A Tabless Flat Top Battery – High Drain for Drone, Power Tools, E-Scooter
Description
Description
Command extreme power with the TianPeng 21700-50XG, a tabless 21700 cell that redefines high-drain performance. This 4-pack delivers a commanding 40A continuous discharge and a massive 5000mAh capacity, making it the ultimate energy core for FPV drones, heavy-duty power tools, high-performance e-scooters, and competition. The tabless design achieves an ultra-low internal resistance of approximately 5mΩ, eliminating voltage sag and minimizing heat under even the most punishing loads. The flat top design ensures universal compatibility with spring-contact devices and simplifies spot-welding for custom battery packs. When your project demands the pinnacle of both current and capacity, the TianPeng 50XG is the undisputed champion.
Key Features
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75A Continuous / 120A+ Pulse Discharge – Delivers staggering current for the most power-hungry equipment. Handles drone punch-outs, angle grinder start-ups, and super-sub-ohm builds without hesitation.
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5000mAh Massive Capacity – Industry-leading energy density for an ultra-high-drain cell. Enjoy extended flight times, longer work sessions, and greater range compared to 4000mAh competitors.
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Tabless (All-Tab) Technology – Reduces internal resistance to ~5mΩ, dramatically lowering heat generation and ensuring instantaneous power delivery with rock-steady voltage.
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Flat Top Design – Universally compatible with 21700 spring-contact chargers, battery trays, and flashlights. The flat terminal is ideal for spot-welding nickel strips in DIY packs.
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4-Pack Convenience – Perfect for building a high-current 4S FPV pack, equipping a dual-battery mod, or powering a compact e-scooter battery module.
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TianPeng A-Grade Quality – Rigorously tested for consistent performance, low self-discharge, and reliable cycle life trusted by demanding professionals.
Parameters
| Parameter | Specification |
|---|---|
| Model | TianPeng 21700-50XG (TP 50XG) |
| Technology | Tabless (All-Tab / No-Tab) |
| Typical Capacity | 5000 mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | ~4800 mAh |
| Nominal Voltage | 3.6 V (typical operating 3.7 V) |
| Max Continuous Discharge | 40 A (cell temperature ≤ 80°C; for best cycle life, ≤60 A recommended for sustained loads) |
| Max Pulse Discharge | 140 A+ (short burst <5 sec, monitor temperature) |
| Discharge Cut-off Voltage | 2.5 V (do not over-discharge) |
| Standard Charge | CC-CV, 0.5C (2500 mA) to 4.2 V, cut-off 50 mA |
| Max Charge Current | 1C (5000 mA); fast charge above 1C requires temperature monitoring |
| Internal Resistance | ≤ 6 mΩ (typical ~5 mΩ, AC 1 kHz) |
| Cycle Life | ≥ 500 cycles (to 80% capacity, 0.5C charge / 1C discharge) |
| Operating Temperature (Discharge) | -20°C to 60°C (ensure active cooling for sustained 75A) |
| Top Type | Flat Top |
| Dimensions | Approx. |
| 21.2 mm diameter × 70.3 mm length | Weight (single cell) | Approx. |
| 69 g | Package Includes | 4 × TianPeng 50XG 21700 cells in protective packaging |
Applications
Recommended For
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FPV Drones & Long-Range UAVs: 120A+ pulse handles aggressive punch-outs and acrobatics. 5000mAh capacity dramatically extends flight time beyond standard LiPo packs.
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Heavy-Duty Cordless Power Tools: Angle grinders, circular saws, rotary hammers, and chain saws operate at full torque without voltage sag or thermal throttling.
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High-Performance E-Scooters & E-Bikes: Build compact, high-power battery packs (e.g., 10S1P or 12S1P) with fewer parallel cells needed. Always use a quality BMS.
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Competition-Level Vaping: Super-sub-ohm mechanical mods and high-wattage regulated devices (builds down to ~0.05Ω) benefit from near-zero voltage drop and immense pulse headroom.
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Extreme-Output Flashlights: FET-driven multi-emitter searchlights and hot-rod torches sustain turbo modes at 40–60A with constant brightness and long runtime.
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RC Racing Cars & Boats: Instantaneous 100A+ bursts provide explosive starts and corner exits.
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Portable Spot Welders & High-Power DIY Projects: Multi-cell configurations deliver massive short-circuit currents for the most demanding applications.
Not Recommended For
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Low-Power Long-Runtime Devices: Solar lights, wireless sensors, and doorbells. The 50XG is severe overkill; use a Samsung 50G (5000mAh 10A) for better economy.
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18650-Only Devices: This is a 21700 cell (21mm x 70mm) and will not physically fit.
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Standard USB Power Banks: The extreme performance is completely wasted in low-current applications.
FAQ
Q: What is the true continuous discharge rating — 40A or should I design for less?
A: The TianPeng 50XG is officially rated for 40A continuous discharge. However, many professional pack builders design to a 60A continuous ceiling to maximize cycle life and keep cell temperatures well within safe limits. For short, intense bursts, the cell can handle up to 120A+. If you intend to run at 75A continuously, ensure excellent active cooling.
Q: Can I use this battery for my FPV drone? How does it compare to LiPo?
A: Absolutely. While a LiPo can deliver extreme bursts, a 4S 50XG pack provides far greater energy density (5000mAh vs. ~1500mAh for a similar-weight LiPo), giving you dramatically longer flight times. The 75A continuous and 120A+ pulse ensure you still get explosive throttle response.
Q: Is this battery suitable for vaping? What resistance is safe?
A: Yes, it is a top-tier choice for extreme sub-ohm vaping. With 75A continuous and 120A+ pulse at 3.6V nominal, it can safely power builds down to approximately 0.05Ω. Always calculate your exact current using Ohm's law, and never exceed the pulse rating for more than a few seconds.
Q: What is tabless technology and why does it matter?
A: A tabless cell eliminates the thin metal tabs that connect the electrode layers inside the battery. Instead, the entire edge of the electrode connects directly to the terminal. This dramatically lowers internal resistance (~5mΩ), reduces heat, and allows for much higher currents with less voltage sag — essential for FPV, power tools, and high-drain applications.
Q: Do I need a special charger for tabless cells?
A: No special charger is required. The 50XG charges like any standard 21700 Li-ion cell. Use a quality CC-CV charger. Charging at 0.5C (2.5A) is recommended for longevity, though the cell can accept up to 5A.
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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security
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.