
HAKADI 26700 3200mAh Sodium-Ion Battery
3.0V 3200mAh Brand-New Rechargeable Cell – Ideal for E-bike & DIY 12V/24V/48V Battery Packs
$32.50$20.79
I. Product Overview
The HAKADI 3V 3500mAh Sodium-ion Battery is a brand-new rechargeable battery cell designed for various electronic devices. As a 26700-type Na-ion battery, it features stable performance, a long cycle life, and a 5-year warranty for manufacturing defects. With pre-shipment quality testing and clear after-sales policies, it provides reliable power support for scenarios such as daily electronic devices, outdoor equipment, and small-scale power supply.
II. Product Parameters and Specifications
Parameter | Details |
|---|---|
Battery Type | Sodium-ion battery (26700 type) |
Manufacturer | HAKADI |
Nominal Voltage | 3V |
Standard Capacity | 3500mAh |
Energy Density | 135Wh/Kg |
Weight | 82±50g |
Size | 26.4×71mm |
Charge Voltage | 4.1±0.05V |
Discharge Cut-off Voltage | 1.5±0.05V |
Cycle Life | >3000 cycles |
Internal Resistance | ≤20mΩ |
Standard Charging Current | 0.5C |
Standard Discharge Current | 0.5C |
Max Charge Current | 1C |
Max Continuous Discharge Current | 3C |
Charging Temperature | -10~45℃ |
Discharging Temperature | -30~60℃ |
Warranty Period | 5 Years |
Data Specification Sheet | Sodium-ion 26700 3500mAh |
III. Standard Configuration and Core Components
The core component of the HAKADI 3V 3500mAh Sodium-ion Battery is:
1 x Original HAKADI Sodium-ion (Na-ion) battery cell (26700 type, 3500mAh, 3V, the core energy storage unit)
IV. Product Advantages
Premium Quality and Reliability
Brand-new 26700-type sodium-ion cells: Ensures authenticity and avoids performance degradation caused by old or counterfeit cells.
Pre-shipment testing: Each cell undergoes strict voltage, resistance, and appearance inspections before shipment, guaranteeing basic quality stability.
5-year warranty: Free replacement for manufacturing defects, providing long-term after-sales protection and reducing user concerns about quality risks.
Long Lifespan and Efficient Energy Storage
Cycle life of >3000 cycles: Significantly longer than short-cycle batteries, reducing the frequency of replacement and lowering long-term usage costs, especially suitable for frequently used devices (e.g., power banks, flashlights).
135Wh/Kg energy density: Balances energy storage capacity and volume, providing sufficient power while keeping the battery lightweight.
Strong Charge-Discharge Performance
Max continuous discharge current of 3C: Meets the power demands of devices requiring short-term high output (e.g., high-brightness flashlights, remote control toys).
1C max charge current: Shortens charging time compared to low-current charging, improving usability for devices that need quick recharging (e.g., portable printers, interphones).
Standard 0.5C charge-discharge: Balances efficiency and battery protection, extending cycle life under regular use.
Wide Temperature Adaptability
Discharging temperature range of -30~60℃: Works normally in extreme cold (e.g., outdoor winter use) and high temperatures (e.g., summer outdoor equipment), ensuring reliable operation in harsh environments.
Charging temperature range of -10~45℃: Adapts to most indoor and outdoor charging scenarios, avoiding charging failures due to temperature restrictions.
Compact Design for Versatile Use
Small size (26.4×71mm) and lightweight (82±50g): Easy to install in compact devices (e.g., gamepads, laser pointers) without adding excessive volume or weight.
3V nominal voltage: Compatible with 3V electronic devices, eliminating voltage matching issues and simplifying replacement for users.
Broad Application Range
Suitable for power banks, flashlights, headlamps, cameras, medical instruments, and other devices, meeting the power needs of daily life, outdoor activities, and professional fields.

Order Tracking




We will send you the invoice and shipping information via email.


Lead time: Lead time depends on whether the item is in stock at our warehouse outside of China. We’ll follow up with the shortest lead time we can secure for you.
Freight time when shipped from China:
Europe: 7-30 days
Africa: 25-40 days
Asia: 6-20 days
North America: 7-25 days
South America: 30-90 days
Australia: 20-30 days
Our services
Extra quality, proven compatibility and on-time delivery.
Extended Warranty
Need confidence in quality?
We are direct distributor of the manufacturers, and are able to provide a longer warranty period by extra quality control processes.


One Stop Solution
Feeling a headache for components compatibility? Our all-in-one battery kit saves your time!
Plus, we offer DDP shipping terms, you don't need to worry about import tax!
Too much time waiting for your battery kit to arrive? Our battery kits might be in stock next street!
Address: Julianowska 37-D2, 05-500 Piaseczno Poland
On-time Fulfillment




Here's what our customers say
“Took delivery of 2,000 pcs EVE 15Ah last week—every pallet spot-on 3.29 V, 0.3 mΩ IR matched within spec. QC spot-check passed 100 %. Already pre-sold 1,200 to our OEM scooter guys; zero returns so far. Re-ordering 5,000 next quarter—solid margin, reliable supply.”
- Mike O’Donnell
“Every day, they strive to improve their service to the clients by developing the right blend of technology and creativity to make sure every job done is done as efficiently as possible.”
- Brian Moten
Frequently asked questions
What is BatteryKitStore.com?
BatteryKitStore.com is a market place for battery DIY lovers to shop for the battery kits they need. We are passionate about new energy solutions.
How does your product/service work?
We offer battery kits products that helps DIY lovers to get their work done, including the materials such as BMS, battery cells, housing structures, fixtures, etc., and we also offer the tools they need such as the testing equipment or the measurement tools. We try to keep our process as neat as possible for you.
How much does it cost?
Our pricing varies depending on the quantity you buy, the inventory location and the upper stream price fluctuation. We offer a variety of options to fit your needs and budget. Please contact us for more information.
Do you offer cash on delivery?
Unfortunately, we don't currently offer cash on delivery. However, we do offer paypal which might be helpful.
How can I contact you?
You can reach us by Email: support@batterykitstore.com. We are always happy to answer your questions.
What does your extended warranty cover?
Extended warranty starts from the date of successful delivery. It covers manufacturing defects in new battery cells only.
How do you assure the quality?
Before shipping, we thoroughly test each cell for voltage, resistance, and appearance to ensure proper function.
How to inspect the battery kits after delivery?
Test your cells within 7 days of arrival. If any issues are found, contact us immediately for a refund or replacement.
Who should buy these battery kits?
These battery kits are for experienced DIY users only. If you’re not familiar with lithium battery safety, we recommend purchasing a pre-assembled battery pack instead.
Is voltage balancing required before assembly?
Yes, battery cells must be balanced (same voltage) before assembly. Do NOT Mix Cells!
o Use same brand & capacity cells in your battery pack.
o Mixing different brands/capacities/voltage voids warranty.
What should I be aware of when using the BMS?
Use the Correct BMS (Battery Management System) and assemble it correctly according to the instructions.
Incorrect BMS wiring, Missing BMS, Charger failures due to assembly errors voids warranty.
About us
Battery Kit Store, hatched from the high technology and strict quality control management from EVE Energy, is dedicated to providing high-end user friendly energy solutions. Our management team, composed of experts in quality control for batteries, power systems, and battery management systems (BMS), is committed to delivering top-notch products.
We share a unified vision of promoting a cleaner and more sustainable planet for future generations. By focusing on advanced technology and quality, we aim to set new standards in the energy market, ensuring that our customers benefit from reliable and efficient energy solutions. At Battery Kit Store, we believe that innovation and responsibility go hand in hand, paving the way for a greener tomorrow.


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