Syma X21 X21S X21W 350mAh Drone Replacement Battery
- This is a replacement compatible with a Syma Drone Battery
- Volts: 3.7V (3.7 Volts)
- Capacity: 350mAh (0.35Ah)
- Type: Li-Polymer
- Color: Black
- Syma X21 X21S X21W Replacement Batteries.
- Dimensions: 1.12 in. L x 1.09 in. W x 0.33 H in.
- Weight: 0.1 lb
- Warranty: 1 Year
Disclaimer: Our products are not affiliated with or authorized by Syma.
What is the best replacement battery for the Syma X21 X21S X21W 350mAh Drone Battery?
The CS-SMX210RC is the best replacement battery for the Syma X21 X21S X21W 350mAh Drone Battery.
What is your return policy and battery warranty?
Our batteries are backed by easy 30-day returns and a 12-month warranty.
How do I find the best replacement Battery?
Our search tool at the top of the website should give you the best results. Search by brand or part number to see if we have the right match for you.
What does Li-ion and Ni-MH mean?
They represent different types of rechargeable batteries. Li-ion stands for Lithium Ion, lithium ions move from the negative electrode through an electrolyte to the positive electrode during discharge and back when charging. Ni-MH stands for nickel-metal hydride where the negative electrode is made from a hydrogen-absorbing alloy.
Do you have a wholesale, reseller and large volume purchase program?
Yes, our bulk purchasing program saves you money and allow you to obtain the batteries you need in one easy, hassle-free transaction. Apply here.