Best selling Batteries from Efest
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 Akku IMR 14430 (Pluspol flach)
A rechargeable cell 14430 4/5AA Li-Ion 3.6 to 3.7 volts (maximum charging voltage 4.2 V) with low self-discharge and low internal resistance. Ideal for model building, LEDs, etc. Efest IMR 14430 unprotected (flat top).
Capacity (mAh): 600 mAh
Nominal voltage (Volts): 3.6 V - 3.7 V
Charging cut-off voltage (Volts): 4.2 V ± 0.05 V
Discharge cut-off voltage (Volts): 2.50 V
Constant/Pulse discharge current: 5C 3 A/6 A
Charging current (Amperes): 0.xx - 0.5 A
Positive terminal (design): flat (Flat Top)
Protection circuit BMS: none
Composition (chemistry): LiMn (IMR)
Diameter (mm): 14.14 mm ± 0.10 mm
Height (mm): 42.63 mm ± 0.2 mm
Weight (g): 20 g ± 1 g
Charging method: CC-CV
Safety notes: Lithium cells should only be operated with protective electronics (deep discharge, short circuit, and overcharge protection)! Please note that lithium cells may only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion.
Additional features: Lithium-ion 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.
Technical specifications for "Efest IMR 14430 600 mAh 3.6 V - 3.7 V Li-Ion battery (flat top)":
Notes: Charging lithium-ion batteries requires a special charger that charges the batteries using a specific charging method (CCCV = constant current, constant voltage). The batteries must not be charged beyond a voltage of 4.25 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 4.1 volts, as this significantly increases their lifespan and the number of charge cycles (potentially up to doubling). Only lithium-ion chargers should be used for charging. However, inexpensive chargers sometimes have the disadvantage of not safely shutting off after the charging process ends.
2. Efest Akku IMR 18500 V1 - (Pluspol flach)
A powerful battery cell developed by Efest, made from a safe chemical composition (Lithium-Manganese). The manganese does not react with lithium, which gives these cells a high level of intrinsic safety. Specifically designed for battery carriers and flashlights.
Efest IMR 18500 V2 (Flat Top)
Capacity: 1100 mAh
Minimum capacity measured at 3A: 1070 mAh
Nominal voltage: 3.7 V
Charging cut-off voltage: 4.2 V ± 0.05 V
Discharge cut-off voltage: 2.5 V
Calculated internal resistance: 0.05 Ohm
Flat top (Flat Top)
Chemistry: LiMn (IMR)
Protection circuit PCB: no
Diameter: 18.25 mm ± 0.1 mm
Height: 49.80 mm ± 0.15 mm
Weight: 33 g ± 1 g
Safety notes: Lithium cells should only be operated with protective electronics! Please note that lithium cells may only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion.
Additional features: Lithium-ion 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.
Notes: Charging lithium-ion batteries requires a special charger that charges the batteries using a specific charging method (CCCV = constant current, constant voltage). The batteries must not be charged above a voltage of 4.2 volts, as this poses a risk of fire and explosion. It is advisable to charge the batteries only up to about 4.1 volts, as this significantly increases their lifespan and the number of charge cycles (potentially doubling it). Only lithium-ion chargers should be used for charging.
3. Efest Akku IMR 14650
Efest IMR 14650 - 950mAh 3.6V - 3.7V Lithium-Ion Battery
Efest IMR 14650 with 950mAh
3.7 Volt Lithium-Ion Battery
A high-performance cell developed in collaboration with Efest, featuring a safe chemical composition based on lithium manganese. The manganese does not react directly with the lithium, which gives these cells a high level of inherent safety.
Technical Specifications
Capacity 950mAh, Nominal Voltage 3.7 Volt
Charge Voltage 4.2V ±0.05, Discharge Voltage 2.75V
Protection Circuit BMS not present, Constant Discharge Current 8A
Charging Current Slow 0 - 0.5A / 3.5h, Fast Charging Current 1A / 2.5h
Positive Terminal Flat (Flat Top), Chemistry LiMn (IMR)
Diameter 14.00mm ±0.1, Height 65.10mm ±0.1, Weight only 27g ±1
Always observe safety precautions: LiMn lithium cells should only be operated with special protective electronics! Please note that LiMn lithium cells should only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion. LiMn lithium-ion 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.
4. Efest Akkku Purple IMR26650, ungeschützt
Application areas: Industry, electromobility, LEDs, and model building. Recommended for regulated battery holders and flashlights with integrated BMS protection circuit. Efest IMR 26650 unprotected max. discharge current 45A (pulse) type. Capacity 5000mAh, min. capacity 4850mAh, nominal voltage 3.6V - 3.7V, charge termination voltage 4.2V ± 0.1V, discharge termination voltage 2.5V, max. continuous/short-term discharge current 18A/45A. Chemical composition: LiNiMnCoO2, protection circuit: no, positive terminal slightly raised. Diameter 26.12 mm ± 0.15 mm, height 66.5 mm ± 0.15 mm, weight 92 g ± 1 g, charging method: CC-CV. Manufacturer: Efest. Safety notes: Lithium cells may only be operated with protective electronics! Please note that lithium cells may only be used by authorized personnel. Improper handling or short circuits can lead to fire or explosion. Additional features: Lithium-ion batteries are thermally stable and do not suffer from memory effect. They operate on the basis of lithium and are characterized by high energy density. Technical specifications for "Efest Purple IMR26650 5000mAh, 3.6V - 3.7V, Li-Ion battery." Notes: Charging lithium-ion 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 4.2 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 4.1 volts, as this significantly increases their lifespan or number of charge cycles (potentially up to doubling). Only lithium-ion chargers should be used for charging. However, inexpensive chargers often have the disadvantage that they do not safely shut off after the charging process is complete, but continue to charge the batteries with a small current, which can be dangerous.
5. Efest IMR 18350 V1 (Pluspol flach)
A powerful battery cell developed by Efest, made from a safe chemical composition (Lithium-Manganese). The manganese does not react with lithium, which gives these cells a high level of intrinsic safety. Specifically designed for battery carriers and flashlights.
Efest IMR 18350 V1 (Flat top, unprotected)
Capacity 800mAh
Minimum capacity measured at 3A 670mAh
Nominal voltage 3.7V
Charge termination voltage 4.2V ± 0.05V
Discharge termination voltage 2.5V
Calculated internal resistance 0.09 Ohm
Flat top
No protection
Chemical composition LiMn (IMR)
Diameter 18.30 mm ± 0.1 mm
Height 34.85 mm ± 0.1 mm
Weight 21 g ± 1 g
Charging method CC-CV
Safety notes: Lithium cells should only be operated with protective electronics! Please note that lithium cells may only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion.
Additional features: Lithium-ion 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.
Technical specifications for "Efest IMR 18350 V1 - 800mAh 3.7V Li-Ion (Flat top)":
Notes: Charging lithium-ion 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 4.2 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 4.1 volts, as this significantly increases their lifespan and number of charge cycles (potentially doubling them). Only lithium-ion chargers should be used for charging.
6. Efest Akku Purple IMR18500 ungeschützt
A high-performance high-drain cell developed in collaboration with Efest, made from a safe chemical composition (Lithium-Manganese). The manganese does not react with lithium, which gives these cells a high level of intrinsic safety. Specifically designed for battery carriers and flashlights.
Efest Purple IMR18500 Li-Ion Battery (Flat Top, unprotected)
Capacity: 1000mAh
Min. Capacity: 1000mAh
Nominal Voltage: 3.7V
Charge Termination Voltage: 4.2V ± 0.05V
Discharge Termination Voltage: 3.0V
Max. Discharge Current: 15A (15C)
Max. Charge Current: 1A (1C)
Positive Terminal: Flat (Flat Top)
Protection: None
Chemical Composition: LiMn (IMR)
Diameter: 18.30 mm ± 0.1 mm
Height: 49.80 mm ± 0.1 mm
Weight: 40 g ± 1 g
Charging Method: CC-CV
Safety Notes: Lithium cells should only be operated with protective electronics! Please note that lithium cells may only be used by qualified personnel. Improper handling or short-circuiting can lead to fire or explosion.
Additional Features: Lithium-ion batteries are thermally stable and do not suffer from memory effect. They operate based on lithium and are characterized by a high energy density.
Technical Data for "Efest Purple IMR18500 - 1000mAh 3.7V (Flat Top, unprotected)"
Normal Charge Current: 100mA/3h
Operating Temperature Charging: 0 °C - 45 °C
Operating Temperature Discharging: -20 °C - 60 °C
Notes: Charging lithium-ion batteries requires a special charger that charges the batteries using a specific charging method (CCCV = constant current, constant voltage). The batteries must not be charged above a voltage of 4.2 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 4.1 volts, as this significantly increases their lifespan and the number of charge cycles (potentially up to double).
7. Efest Akku IMR 16500 Pluspol flach
A rechargeable Li-Ion battery cell with low self-discharge and low internal resistance. Ideal for model building, LEDs, etc. Dimensions: 50.05 x 16.6 mm. Efest IMR 16500 unprotected (Flat Top).
Technical specifications:
- Type: Li-Ion
- Capacity: 900 mAh
- Min. Capacity: 850 mAh
- Nominal voltage: 3.6 V - 3.7 V
- Charge termination voltage: 4.2 V ± 0.05 V
- Discharge termination voltage: 2.75 V
- Charge current: 0 A - 0.7 A
- Max. charge current: 1 A
- Max. discharge current constant/pulse: 6 C = 7 A / 10 A
- Composition (chemistry): LiMn
- Protection circuit BMS electronics: none
- Positive terminal (design): flat (Flat Top)
- Diameter: 16.60 mm ± 0.05 mm
- Height: 50.05 mm ± 0.10 mm
- Weight: 38 g ± 0.01 g
- Charging method: CC-CV
Safety notes: Lithium cells should only be operated with protective electronics (deep discharge, short circuit, and overcharge protection). Please note that lithium cells should only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion.
Additional features: Lithium-ion batteries are thermally stable and do not suffer from memory effect. They operate based on lithium and are characterized by high energy density.
Notes: Charging lithium-ion 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 4.25 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 4.1 volts, as this significantly increases their lifespan and the number of charge cycles (potentially up to doubling). Only lithium-ion chargers should be used for charging.
8. Efest Purple IMR 18350 Battery V2 - Li-Ion - 700mAh - 3.7V
A powerful high-current cell co-developed by Efest with a safe chemical composition (lithium-manganese). The manganese does not react with lithium, so these cells have a high level of intrinsic safety. Specially developed for battery carriers and torches.
Batteries
CHF13.50 CHF13.50/1pcs.
Efest Purple IMR 18350 Battery V2 - Li-Ion - 700mAh - 3.7V
1 pcs., 18350, 700 mAh
9. Efest ICR 16340 V2 Gold 850mAh 3.6V - 3.7V unprotected
High-quality cells with long lifespan and high cycle stability. Recommended for modeling, industry, flashlights with deep discharge protection, battery carriers up to 15W, etc. Efest ICR 16340 V2 Gold (no PCB protection) Capacity (mAh) 850mAh min. Capacity (mAh) 780mAh Nominal voltage (Volt) 3.7V Charge termination voltage (Volt) 4.2V ± 0.05V Discharge termination voltage (Volt) 2.75V Recommended charge current (Ampere) 50 - 250mA Max charge current 500mA Positive terminal (construction) raised (Button Top) Composition (chemistry) LiCo (ICR) Protection circuit not present Diameter (mm) 16.4 mm ± 0.1 mm Height (mm) 33.80 mm ± 0.1 mm Weight (g) 20 g ± 1 g Safety notes: Lithium cells should only be operated with protective electronics! Please note that lithium cells may only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion. Additional features: Lithium-ion batteries are thermally stable and do not suffer from memory effect. They operate on the basis of lithium and are characterized by high energy density. Technical data for "Efest ICR 16340 V2 Gold 850mAh 3.6V - 3.7V unprotected" Notes: Charging lithium-ion 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 4.2 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 4.1 volts, as this significantly increases the lifespan and number of charge cycles (potentially up to doubling). Only lithium-ion chargers should be used for charging.
Batteries
CHF17.93 CHF17.93/1pcs.
Efest ICR 16340 V2 Gold 850mAh 3.6V - 3.7V unprotected
1 pcs., 16340, 850 mAh
10. Efest Akku Purple IMR18500 - (Button Top, ungeschützt)
A powerful high current cell made of a safe chemical composition (lithium-manganese). The manganese does not react with lithium, so these cells have a high intrinsic safety. Specially designed for battery carriers and flashlights.Efest Purple IMR18500 Li-Ion battery (positive terminal elevated, unprotected)Capacity1000mAhMin. capacity1000mAhNominal voltage3.7VCharging voltage4.2V ± 0.05VDischarging voltage3.0VMax. Discharge Current15A (15C)Charge CurrentMax.1A (1C)PlusPole Elevated (Button Top)ProtectionNoneChemical CompositionLiMn (IMR)Diameter18.30 mm ± 0.1 mmHeight50.10 mm ± 0.1 mmWeight40 g ± 1 gCharge MethodCC-CVManufacturer's LinkSolidTest ResultsVapor BatteriesTest ResultsLygte-Info (2017)Safety Instructions:Lithium cells must only be operated with protection electronics!
Please note that lithium cells may only be used by skilled persons.
Incorrect handling or short-circuiting can lead to fire development or explosion.Other properties:Lithium-ion batteries are thermally stable and are not subject to memory effect.
They work on the basis of lithium and are characterized by a high energy density.Technical data for "Efest Purple IMR18500 - 1000mAh 3.7V (Button Top, unprotected) "Charging current Normal100mA/3hOperating temperature Charging0 °C - 45 °COperating temperature Discharging-20 °C - 60 °CHinstructions:For charging lithium ion batteries, a special charger is required, which charges the batteries according to a special charging procedure. (CCCV = constant current, constant voltage.) The batteries must not be charged above a voltage of 4.2 volts, otherwise there is a risk of fire and explosion. It is advantageous to charge the batteries only up to approx. 4.1 volts, as this significantly increases the service life or the number of charging cycles (possibly up to double). Only lithium ion may be used for charging.
Batteries
CHF18.90 CHF18.90/1pcs.
Efest Akku Purple IMR18500 - (Button Top, ungeschützt)
1 pcs., 18500, 1000 mAh
