Efest SLIM K1 Intelligent Charger

$8.99

MSRP / single unit, log in for wholesale pricing

Efest SLIM K1 Intelligent Charger is a single-bay Li-ion charger stocked for resale, one of the vape accessories from Efest that takes 18650, 20700 and 26650 cells on a spring-loaded sliding rail. It charges at 1A from Micro USB with a 4.20V auto cut-off, LED status indicator and overcharge protection. Order at tiered wholesale pricing and 1-2 business day dispatch.

Type: single-bay smart charger for Li-ion 3.6V/3.7V cells
Fits: 14 cylindrical Li-ion sizes including 18650, 20700 and 26650
Charging: 1000mA (1A) ±10% with 4.20V ±0.05V auto cut-off
Connection: Micro USB input, DC 5V 1A (AC 100-240V via adapter)
Display: built-in LED charging status indicator

128 in stock

Build a bulk order

Authorized master distributor 100% authentic 1-2 business day dispatch

EfestBRAND

AccessoriesPRODUCT TYPE

SLIM K1MODEL

Li-ion 10440-26650 (incl. 18650, 20700, 26650)FITS

1-bay charger (Micro USB)TYPE

1AOUTPUT

About the Efest SLIM K1 Intelligent Charger

The Efest SLIM K1 is a compact single-bay smart charger built for everyday lithium-ion battery upkeep. Its slim, travel-friendly body drops into a bag or drawer easily, while an intelligent auto-detect circuit reads the cell on contact and begins charging within seconds, no mode selection or setup required.

A spring-loaded sliding rail accepts a wide range of cylindrical cells, so one charger covers the common 18650, 20700, and 26650 sizes along with many smaller formats. Power comes in through a Micro USB port, letting customers top off from a wall adapter, power bank, or laptop, and a built-in LED keeps them informed of charging status at a glance.

Protection is handled automatically: reverse-polarity, short-circuit, and overcharge safeguards work alongside a 4.20V auto cut-off, and a low-voltage activation feature can revive over-discharged cells. Flame-retardant housing and a straightforward single-slot design make the SLIM K1 an easy, high-margin accessory add-on and impulse item for any counter or checkout display.

Efest SLIM K1 Intelligent Charger Compatible With:

Li-ion 3.6V/3.7V rechargeable cells
18650 batteries
20700 batteries
26650 batteries
18350 / 18500 / 16340 / 14500 and other cylindrical sizes
Micro USB power source (wall adapter, power bank, or USB port)

Efest SLIM K1 Intelligent Charger Key Features:

Bays / Slots: 1 (single bay)
Input: Micro USB, DC 5V 1A (AC 100-240V via adapter)
Charge Current: 1000mA (1A) ±10%
Auto Cut-Off Voltage: 4.20V ±0.05V
Display / Indicator: Built-in LED charging status indicator
Charges Battery Sizes: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 26500, 26650
Battery Chemistry: Li-ion 3.6V / 3.7V
Protections: Reverse polarity, short circuit, overcharge; low-voltage activation
Construction: Flame-retardant housing, spring-loaded sliding contact
Operating Temperature: 0°C ~ 40°C
Warranty: 3-year manufacturer warranty
Shop the full Efest wholesale range

Efest SLIM K1 Intelligent Charger Purchase Includes:

1 x Efest SLIM K1 Intelligent Charger

Specifications

Brand	Efest
Product Type	Accessories
Model	SLIM K1
Fits	Li-ion 10440-26650 (incl. 18650, 20700, 26650)
Type	1-bay charger (Micro USB)
Output	1A
Pack Size	1
SKU	efs-slim-k1
Weight	0.8 oz
Dimensions	3.5 × 2.5 × 1.5 in

Efest SLIM K1 Intelligent Charger FAQ

What size batteries fit the Efest SLIM K1?

The SLIM K1 is a single-bay Li-ion charger covering cylindrical cells from 10440 up to 26650, including 18650, 20700 and 26650. A spring-loaded sliding rail adjusts to the cell length, so there are no inserts to lose. If you are unsure which option to start with, order a small mix first and reorder what sells.

How is the SLIM K1 powered and how fast does it charge?

It charges at 1A from a Micro USB input, with a 4.20V auto cut-off, an LED status indicator and overcharge protection. It is a modest, portable charger, suited to customers who only carry one spare battery. Customers who buy this tend to come back for related accessories, so it helps basket size.

When should I recommend a two-bay charger instead?

If the customer carries two cells, the SLIM K2 charges both at once on independent channels at the same 1A per bay. For a faster two-cell unit, the LUSH Q2 adds a 2A single-cell mode. Volume price breaks apply on total cart quantity, so mixing options in one order still counts toward your tier.

Is the Efest SLIM K1 Intelligent Charger authentic?

Yes. We are an authorized master distributor, and every Efest SLIM K1 Intelligent Charger is sourced direct through authorized channels, never grey-market. Stock arrives in manufacturer packaging, so you can resell it with confidence and answer customer questions about where it came from.

Is there a minimum order for the Efest SLIM K1 Intelligent Charger, and how fast does it ship?

There is no minimum order. In-stock orders ship within 1 business day from our Oklahoma City and Florida warehouses with PACT Act compliant adult-signature delivery. Approval normally takes one business day, new accounts get $25 off the first order, and volume price breaks apply on total cart quantity. Apply for a wholesale account.

WHY BUY FROM EJUICE RESELLERS WHOLESALE

100% Authentic

Sourced direct from authorized suppliers

PACT Act Compliant

Every order ships fully compliant

No Minimum Order

Order any quantity, no minimum to start

Dedicated Rep

A real account manager on call

1 Business Day Dispatch

In-stock orders ship in 1 business day

Fast Restocks

Best-sellers replenished quickly

STOCK THESE TOO

Round out your order

View all chargers →

WHO WE ARE

Wholesale vape distributor for licensed US retailers

eJuice Resellers Wholesale is an authorized master distributor and B2B vape supplier to licensed vape shops, smoke shops, convenience stores and sub-distributors across the United States. One wholesale account covers the whole catalog: disposable vapes from Geek Bar, RAZ, Lost Mary and Fifty Bar, e-liquids in freebase and salt nicotine, vape hardware, coils and pods from SMOK, Vaporesso, Geekvape and UWELL, and nicotine pouches.

Every product is sourced direct through authorized channels, sold by the unit with volume price breaks and no minimum order, and ships within 1-2 business days from our Oklahoma City and Florida warehouses, PACT Act compliant with adult-signature delivery. Apply for a wholesale account and get $25 off your first order.

3,200+RETAILERS

9,663SKUS

13yrsEXPERIENCE

BRANDS WE CARRY

View all 165 brands →