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21700 Battery Extender / Spacer
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21700 Battery Extender / Spacer

From $1.20

*6% OFF with coupon code BLF06
*20% OFF E3A Light on orders over USD$69
*Free E3A Light with orders over USD$89(included in shipment, not in cart)
Extra 6% OFF (total 12% OFF) on orders over USD$99

*All discounts apply to actual payment amounts, excluding shipping.

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Description

Description

21700 Battery Extender / Spacer

Designed for: Skilhunt M300 V4
Product Description:
This precision-machined battery extender (spacer) is specifically designed for the M300 V4, allowing it to reliably use both unprotected flat-top 21700 cells and protected 21700 batteries.

Specifications:

Diameter: 21.9 mm
Long version thickness: 7 mm
Short version thickness: 2 mm

Usage:

7mm Long Extender / Spacer: Ideal for shorter unprotected 21700 cells. Adds the necessary length to achieve proper spring pressure and reliable contact.
2mm Short Extender / Spacer: Recommended for protected 21700 batteries. Eliminates any gap and prevents battery rattle.

Key Benefits:

Enables perfect compatibility with both protected and unprotected 21700 batteries
Solves contact issues with shorter cells
Easy to install – simply place between the battery and tailcap spring
Minimal added weight, maintains excellent conductivity

With this extender kit, your M300 V4 becomes much more versatile, giving you the freedom to use a wider range of high-capacity 21700 batteries without any compatibility concerns.

The price is for a single unit.

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Shipping & Delivery

Shipping

We will take 7 USD for order less than 49.9 USD.

We will ship the products from China.

We will arrange shipment in 1 to 2 business days. Most of time, we will ship by express or Post, express may need 7-15 business days, if ship by Post, may need 10-20 business days, More or less. Actual delivery time may be delayed due to some force majeure reasons.