Reliance RS50 70A 5000mAh Flat Top 21700 Tabless Battery - Wholesale Discount
This product is either priced at a low wholesale-level price or is a limited quantity product so it is not eligible for any quantity discounts. Quantities ordered will not count towards quantity discounts on other products.
Next Generation Tabless Battery Cell
The Reliance RS50 is a next-generation 21700 lithium-ion cell built around a tabless electrode architecture, significantly reducing internal resistance and improving thermal performance under load. This design minimizes current bottlenecks inside the cell, resulting in lower voltage sag, more uniform heat distribution, and improved efficiency during high-current charge and discharge operation.
With a 5000 mAh nominal capacity and up to 70 A continuous discharge capability, the RS50 delivers an uncommon combination of sustained high output and extended runtime. 8A standard charge and 15A max charge current allows for extreme fast charging. Its stable chemistry and robust construction make it well suited for high-drain pack builds, e-mobility systems, and demanding power applications where both performance and reliability are critical.
Reliance RS50 21700 5000mah Specifications:
- Size: 21700
- Approximate Diameter: 21.35mm max
- Approximate Length: 70.30mm max
- Brand: Reliance
- Manufacturer Rated Nominal Capacity: 5000mAh
- Manufacturer Rated Minimum Capacity: 4950mAh (0.2C discharge)
- Manufacturer Rated Max Discharge Current: 70A (with 80℃ temperature cut-off)
- Manufacturer Rated Max Charge Current: 15A
- Nominal Voltage: 3.6V
- Peak Voltage: 4.2V
- Protected: NO
- Style: Flat Top
- Color: Gray
- Origin: China
Priced per battery, not per pair.
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Batteries are sold individually.
If your battery is damaged or defective on arrival (will not take its first charge, or has issues with its first cycle), please let us know within 14 days of receiving your order and we'll make it right. Please read our complete store policy on defective products here for more information and to see if you're eligible.
Battery Warning
Warning: Lithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and/or without a BMS, may cause severe injury and damage. We are not responsible for any injuries caused by lithium ion batteries - use at your own risk.
All rechargeable batteries have inherent risks under any circumstance. Use caution with working with li-ion batteries (lithium-ion), LiPo (lithium ion polymer), and any rechargeable cells (together "rechargeable batteries"), as they have dangerous charging characteristics and are known to explode or burn if mishandled. A purchaser and user of rechargeable batteries should educate themselves on rechargeable batteries, especially as to charging, discharging, assembly, and storage. Learn more about proper storage and care for rechargeable batteries here. We are not responsible for any damage caused by the misuse or mishandling of rechargeable batteries.
Here are a few tips:
- Never completely discharge batteries (usually below 2.5V for li-ion or 2.0V for LiFePO4, check datasheet)
- Charge fully (usually to 4.2V for lithium ion or 3.6V for LiFePO4) before first use
- Never charge batteries to more than their full charge voltage
- Do not charge unattended
- Do not store your li-ion batteries fully charged for an extended period of time (weeks or more)
- If you must store your battery for a long time, only store in a case or individual box in a cool and dry place at approximately 3.5-3.7V for li-ion or 3.2V for LiFePO4
- Use only high quality battery chargers
- Do not expose to heat
- Do not connect the positive contact to the negative contact without an appropriate load
- Never exceed the battery's specifications
- Never try to charge or discharge li-ion batteries with battery chargers that are not made for li-ion batteries
- Always charge these batteries on and within fireproof material
- Never leave rechargeable batteries in a recharging station unattended
- Do not use any rechargeable battery or charger if any visible damage is present, or if known mishandling, accidental or otherwise, has occurred
- Always store and transport rechargeable cells in a safe, non-conductive container (never keep a spare battery loose in a pocket, purse, etc. and always use protective cases)
- Properly dispose of all battery cells and chargers in accordance with local laws and mandates (if you're unsure, contact your local municipality)
- If a rechargeable battery overheats, hisses, or bulges, immediately quarantine the battery from any combustible materials - ideally, take the battery outside
- If a rechargeable battery catches fire, the FAA recommends pouring water or soda on the battery and surrounding areas - ideally, use a foam extinguisher to quell the fire
By purchasing this product, you agree that seller makes no warranties whatsoever with respect to the goods sold on this website, including any (a) warranty of merchantability or (b) warranty of fitness for a particular purpose, whether express or implied by law, course of dealing, course of performance, usage of trade or otherwise. Buyer acknolwledges that it has not relied upon any representation or warranty made by seller, or any other person on the seller's behalf. If purchasing for resale, buyer assumes all responsibility and agrees to forward all notifications and warnings to the purchaser.
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