Best Efest products in the Battery charger category
On this page you'll find a ranking of the best Efest products in this category. To give you a quick overview, we've already ranked the most important information about the products for you.
1. Efest SLIM K2 2-bay Li-Ion battery charger
Efest Slim K2 Li-Ion Charger, charges up to 72 mm in length. The Slim K2 charger from Efest is a handy companion for everyday use, especially on the go. Thanks to its compact size, the charger fits easily into any pocket. It can charge two 18650 or 21700 batteries with a maximum charging current of 1A via a USB port. The Slim K2 features two small charge level indicators, two slots for various Li-Ion battery types, and a MicroUSB cable. Various safety mechanisms against short circuits, reverse polarity, and overcharging ensure the device's protection.
Features:
- Fast charging mode: 2x 1A
- 2 separate charging slots
- LED charge level indicator
- Automatic overcharge protection
- Short circuit protection
- Reverse polarity protection
- Automatic charging stop after the charging process is complete
Suitable for the following battery types (Lithium IMR 3.6V/3.7V):
- 10440
- 17340
- 18500
- 26650
- 14500
- 18350
- 18650
- 20700
- 16340
- 18490
- 26500
- 21700
Technical specifications:
Input power: AC 100 ~ 240V 50/60Hz
Output power: DC 5V 2A
Charging cut-off voltage: 4.20V ± 0.05V
Storage temperature: -40°C ~ +70°C
Operating temperature: 0° - 40°C
Charging current: 1000 mA ± 10 % x2
Standby power consumption: 20 mA
Dimensions (LxWxH): 100 x 47 x 26 mm
Weight: 45 g
Included in delivery: 1x Efest Slim K2 charger, 1x USB charging cable, 1x user manual.
2. Efest Charger Lush Q8 for lithium ion batteries
The Q8 from Efest is an extension of Efest's LUSH series. With its futuristic design and attractive pricing, the series is gaining increasing popularity.
The LUSH Q8 features new versions with extended charging slots up to 73 mm, allowing for the use of 20700 and 21700 battery sizes. The LUSH Q8 charger is suitable for batteries with a diameter of up to 26 mm and a length of 73 mm. Efest has opted not to include a built-in power supply in the Q8, instead providing a 12V 2A power adapter, similar to what is known from the LUC series.
The Q8 model is an 8-bay battery charger with 3 different charging currents: 0.5A x 8, 1A x 4, and 2A x 2. It is compatible with all Li-ion batteries (IMR, INR, ICR) with a nominal voltage of 3.6/3.7V and charges them quickly and safely up to 4.20V; the shutdown occurs automatically.
The following lithium-ion battery types can be charged with the Efest Lush Q8: Li-Ion (3.6/3.7V nominal) up to 4.2V in sizes: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 25000, 26500, 26650.
Slots 1 and 8 are not suitable for 10440, 14500, 14650, and 16340 due to the current strength of up to 2A.
Distribution of charging currents:
- The two outer slots are designed for batteries with a diameter of 18 mm to 26 mm and can be charged with a current of 2A, provided that no other batteries are in slots 2 to 7. Caution is advised with small batteries (10440, 14500, 14650, 16340); do not place them in the outer slots (slots 1 and 8).
- Slots 2 to 7 charge with 0.5A to 1A (depending on occupancy).
- With 4 slots occupied, the batteries are charged at 1A; with occupancy from 4 to 8 slots, the charging current is 0.5A.
Efest Lush Q4 product information:
- 8 separate charging bays, individually monitored
- 8 different batteries.
3. Efest K1 Slim Battery Charger
Li-Ion (3.6/3.7V nominal) up to 4.2V in sizes: 18490, 18500, 18650, 20700, 21700. Smaller batteries can be used with the charger, but they may not be optimal in the long run due to the high charging current of the Slim K1.
Efest Slim K1 Product Information:
1 charging slot
Charging current 1A
Status display as an animated charging bar
CC/CV charging program for Li-Ion batteries
Automatic charging stop after the charging process is complete
Reactivation of protected and deeply discharged batteries
Safe: Reverse polarity protection, overcharge protection, overload protection, short circuit protection
CE & RoHS certified.
4. Efest Rechargeable battery IFR14500 - AA, Flat Top (without head) flat positive terminal
IFR14500 - 400mAh LiFePo4 Battery 3.2V
Application area: Solar lamps, LED applications, model building, industry.
Capacity: 400mAh
Min. capacity: 350mAh
Nominal voltage: 3.2V
Charge termination voltage: 3.6V ±0.05
Discharge termination voltage: 2.5V
Watt-hours: 1.28Wh
Max. charge current: 0.4A
Charge current: 0.1 - 0.4A
Positive terminal: flat (Flat Top)
Protection: none
Diameter: 14.2mm ± 0.15
Height: 49.8mm ± 0.35
Weight: 25g ± 1
Charging method: CC-CV
Additional features:
Lithium iron phosphate batteries are thermally stable and do not suffer from memory effect. They operate on the basis of lithium and are characterized by a high energy density.
Note: Lithium cells should only be used with protective electronics!
Safety notice:
Please note that lithium cells may only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion.
Technical data for "IFR14500 - 400mAh AA LiFePo4 Battery 3.2V":
Notes: Charging lithium batteries requires a special charger that charges the batteries according to a specific charging method (CCCV = constant current, constant voltage). The batteries must not be charged above a voltage of 3.65 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 3.5 volts, as this significantly increases their lifespan or number of charge cycles (potentially up to doubling). Only lithium chargers with a charge up to 3.65V should be used for charging. Furthermore, batteries and accumulators should not be disposed of in household waste!.
Battery charger
CHF18.97
Efest Rechargeable battery IFR14500 - AA, Flat Top (without head) flat positive terminal
1 pcs., 400 mAh, Rechargeable battery
5. Efest Luc V4 charger for 4 batteries
Efest LUC V4 Charger for Li-Ion Batteries
The Efest LUC charger features 4 intelligent, independently functioning charging slots. Using a soft switch, batteries can be charged at 500 mAh, 1000 mAh, or 2000 mAh. The Efest LUC can be powered either by a 230V power supply or a 12-24V car charging cable. CE, RoHS certified.
The following Li-Ion battery types can be charged: 10440, 16340, 14500, 14650, 16650, 18350, 17500, 17670, 18500, 18650, 18700, 26500, 26650, 22650. 15270 or 14250 batteries can only be charged with spacers. 3.6V and 3.7V Li-Ion batteries.
Product information:
- Simple, straightforward operation
- Charging process is fully automatic after self-check and analysis of the batteries
- Selectable charging current of 0.5A, 1A, and 2A
- HD mini LCD screen for precise real-time display (voltage and battery capacity)
- With the USB port and inserted battery, you can charge your phone or laptop
- Optical warning for deep discharge via USB output
- Individual slot monitoring for 1-4 Li-Ion batteries of different capacities
- Activation function for deeply discharged batteries; the LUC V4 can activate excessively discharged protected batteries
- High safety due to protective electronics: overvoltage, short circuit, and reverse polarity protection
- Automatic restart of the charging process if the voltage of a battery left in the charging slot falls below 3.9V
- Suitable for Li-Ion batteries.
