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Energenie Rechargable Battery 18650 Li-ion 2600mAh 3.7V 1pcs
Rechargeable Batteries

Energenie Rechargable Battery 18650 Li-ion 2600mAh 3.7V 1pcs

Rechargeable lithium-ion battery 3.7V 18650 with a capacity of 2600 mAh. Provides long-lasting energy with very low self-discharge. The built-in PCB protection minimizes risks from overcharging, short...

Rechargeable lithium-ion battery 3.7V 18650 with a capacity of 2600 mAh. Provides long-lasting energy with very low self-discharge. The built-in PCB protection minimizes risks from overcharging, short circuiting, and deep discharge.

  • Suitable for use in LED flashlights, electronic cigarettes, laser pens, etc.
  • Nominal voltage: 3.7 V
  • Capacity: 2600 mAh
  • ...
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Product report

Description

Description

Rechargeable lithium-ion battery 3.7V 18650 with a capacity of 2600 mAh. Provides long-lasting energy with very low self-discharge. The built-in PCB protection minimizes risks from overcharging, short circuiting, and deep discharge.

  • Suitable for use in LED flashlights, electronic cigarettes, laser pens, etc.
  • Nominal voltage: 3.7 V
  • Capacity: 2600 mAh
  • Overcharge voltage limit: 4.3 ±0.05 V
  • Overdischarge voltage limit: 2.4 ±0.1 V
  • Operating temperature: charging 0~45 °C, discharging -20~60 °C
  • Storage temperature: -20~45 °C
  • Storage voltage: 3.7 - 3.85 V
  • Maximum constant charging current: 2000 mA
  • Dimensions: diameter 19.5 mm, height: 70.5 mm
  • Net weight: 47.5 g

Warning: Lithium-ion rechargeable batteries should be used with great care by individuals who are aware of the risks of improper use.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Capacity
2600 mAh

Capacity

The amount of energy that a battery can store in milliampere-hours (mAh). The higher the capacity of a battery, the more it can hold with one charge. Larger batteries also require more time to charge.

2. Capacity makes sense when comparing batteries of the same size. For example, 18650 batteries usually have 2300-3600mAh, while AAA batteries have around 1000mAh.
Size
18650
Type
Li-ion

Type

The two main types are Ni-MH (Nickel-Metal Hydride) and Li-ion (Lithium Ion).

Li-ion
Li-ion batteries are the newest rechargeable battery technology, which offer more charging cycles compared to older ones based on Nickel or Lead, but with a higher initial cost.
Voltage
3.7 V
Packaging
1 pcs

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (2)

Reviews

4.0
2
4.0
Review this product
  1. 1
  2. 4 stars
    0
  3. 1
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • singx23
    3
    4 out of 4 members found this review helpful
    singx23

    Verified purchase

    It arrived at 3.65v...
    Now I'm doing the first charge after discharge to see what it's like...
    And I'll come back with measurements...
    Initially, it gave me 200mah...
    The circuit cut off at 3.10v...
    Now I will fully charge it and then fully discharge it...
    I'll be back shortly...
    Charge at 2350mah and the circuit cut off at 4.27v...
    Now let's go for discharge....
    1450mah on discharge...
    The tests were done on a power bank so with the increase in voltage from 3.6-3.7v to 5v there will logically be some loss in conversion....
    Overall, I would say it's okay...
    It's worth its L7...
    Now how long the battery itself or the protection circuit will last, remains to be seen...
    I tried to put two of these in a vacuum cleaner but they didn't work because the protection circuit cut off due to a load greater than they could handle..
    For simpler solutions like in a radio where I put one, it's okay...

    In total, I have taken three...
    I have put one in a radio and the other two are sitting for future use...
    One day as I was looking at them I noticed that through the wrapping it wrote the type of battery... That is bak a05.... I don't know if all are of the same brand.... It happened that one was visible through the wrapping.. The wrapping sleeve...
    And also one of them while sitting discharged to 2.5v.... Not a good sign...
    I tried to charge it in an xtar but it didn't charge...
    Then I tried to charge it in a 18650 flashlight but again it charged sometimes and sometimes not... It suddenly showed full... Outside the charger it dropped to 2.5-2.8v.. And now I'm trying in a power bank that takes 18650...
    And here it acts up, sometimes charges and sometimes not but slowly raises voltage and charges slowly... Let's see if I can save it... Otherwise, it will be returned...
    Or maybe I'll drop the issue...
    It's not worth much..
    BAK in general when new are somewhat tolerable even though they are in the budget category, as they age they show problems more than other branded ones...
    I've taken out some like these from laptop batteries and I have an idea...
    But it's not that I haven't encountered branded ones that when they age they act up....
    It's a complex issue...
    That's all...

    Translated from Greek ·
    • Value for money
    • Expected capacity
    • Durability
    • Does their performance decrease at a moderate rate?
    Did you find this review helpful?
  • 5
    staaaak

    Verified purchase

  • singx23
    3
    singx23

    It arrived at 3.65v...
    Now I'm doing the first charge after discharge to see what it's like...
    And I'll come back with measurements...
    Initially, it gave me 200mah...
    The circuit cut off at 3.10v...
    Now I will fully charge it and then fully discharge it...
    I'll be back shortly...
    Charge at 2350mah and the circuit cut off at 4.27v...
    Now let's go for discharge....
    1450mah on discharge...
    The tests were done on a power bank so with the increase in voltage from 3.6-3.7v to 5v there will logically be some loss in conversion....
    Overall, I would say it's okay...
    It's worth its L7...
    Now how long the battery itself or the protection circuit will last, remains to be seen...
    I tried to put two of these in a vacuum cleaner but they didn't work because the protection circuit cut off due to a load greater than they could handle..
    For simpler solutions like in a radio where I put one, it's okay...

    In total, I have taken three...
    I have put one in a radio and the other two are sitting for future use...
    One day as I was looking at them I noticed that through the wrapping it wrote the type of battery... That is bak a05.... I don't know if all are of the same brand.... It happened that one was visible through the wrapping.. The wrapping sleeve...
    And also one of them while sitting discharged to 2.5v.... Not a good sign...
    I tried to charge it in an xtar but it didn't charge...
    Then I tried to charge it in a 18650 flashlight but again it charged sometimes and sometimes not... It suddenly showed full... Outside the charger it dropped to 2.5-2.8v.. And now I'm trying in a power bank that takes 18650...
    And here it acts up, sometimes charges and sometimes not but slowly raises voltage and charges slowly... Let's see if I can save it... Otherwise, it will be returned...
    Or maybe I'll drop the issue...
    It's not worth much..
    BAK in general when new are somewhat tolerable even though they are in the budget category, as they age they show problems more than other branded ones...
    I've taken out some like these from laptop batteries and I have an idea...
    But it's not that I haven't encountered branded ones that when they age they act up....
    It's a complex issue...
    That's all...

    Translated from Greek ·
    4
  • 5
    staaaak

    0
  • See all
Questions (1)

Questions

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Description & Specifications

Rechargeable lithium-ion battery 3.7V 18650 with a capacity of 2600 mAh. Provides long-lasting energy with very low self-discharge. The built-in PCB protection minimizes risks from overcharging, short circuiting, and deep discharge.

  • Suitable for use in LED flashlights, electronic cigarettes, laser pens, etc.
  • Nominal voltage: 3.7 V
  • Capacity: 2600 mAh
  • Overcharge voltage limit: 4.3 ±0.05 V
  • Overdischarge voltage limit: 2.4 ±0.1 V
  • Operating temperature: charging 0~45 °C, discharging -20~60 °C
  • Storage temperature: -20~45 °C
  • Storage voltage: 3.7 - 3.85 V
  • Maximum constant charging current: 2000 mA
  • Dimensions: diameter 19.5 mm, height: 70.5 mm
  • Net weight: 47.5 g

Warning: Lithium-ion rechargeable batteries should be used with great care by individuals who are aware of the risks of improper use.

Manufacturer

Manufacturer Details

Warnings & Safety Information
Capacity
2600 mAh

Capacity

The amount of energy that a battery can store in milliampere-hours (mAh). The higher the capacity of a battery, the more it can hold with one charge. Larger batteries also require more time to charge.

2. Capacity makes sense when comparing batteries of the same size. For example, 18650 batteries usually have 2300-3600mAh, while AAA batteries have around 1000mAh.
Size
18650
Type
Li-ion

Type

The two main types are Ni-MH (Nickel-Metal Hydride) and Li-ion (Lithium Ion).

Li-ion
Li-ion batteries are the newest rechargeable battery technology, which offer more charging cycles compared to older ones based on Nickel or Lead, but with a higher initial cost.
Voltage
3.7 V
Packaging
1 pcs

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (2)

4.0
2
4.0
Review this product
  1. 1
  2. 4 stars
    0
  3. 1
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • singx23
    3
    4 out of 4 members found this review helpful
    singx23

    Verified purchase

    It arrived at 3.65v...
    Now I'm doing the first charge after discharge to see what it's like...
    And I'll come back with measurements...
    Initially, it gave me 200mah...
    The circuit cut off at 3.10v...
    Now I will fully charge it and then fully discharge it...
    I'll be back shortly...
    Charge at 2350mah and the circuit cut off at 4.27v...
    Now let's go for discharge....
    1450mah on discharge...
    The tests were done on a power bank so with the increase in voltage from 3.6-3.7v to 5v there will logically be some loss in conversion....
    Overall, I would say it's okay...
    It's worth its L7...
    Now how long the battery itself or the protection circuit will last, remains to be seen...
    I tried to put two of these in a vacuum cleaner but they didn't work because the protection circuit cut off due to a load greater than they could handle..
    For simpler solutions like in a radio where I put one, it's okay...

    In total, I have taken three...
    I have put one in a radio and the other two are sitting for future use...
    One day as I was looking at them I noticed that through the wrapping it wrote the type of battery... That is bak a05.... I don't know if all are of the same brand.... It happened that one was visible through the wrapping.. The wrapping sleeve...
    And also one of them while sitting discharged to 2.5v.... Not a good sign...
    I tried to charge it in an xtar but it didn't charge...
    Then I tried to charge it in a 18650 flashlight but again it charged sometimes and sometimes not... It suddenly showed full... Outside the charger it dropped to 2.5-2.8v.. And now I'm trying in a power bank that takes 18650...
    And here it acts up, sometimes charges and sometimes not but slowly raises voltage and charges slowly... Let's see if I can save it... Otherwise, it will be returned...
    Or maybe I'll drop the issue...
    It's not worth much..
    BAK in general when new are somewhat tolerable even though they are in the budget category, as they age they show problems more than other branded ones...
    I've taken out some like these from laptop batteries and I have an idea...
    But it's not that I haven't encountered branded ones that when they age they act up....
    It's a complex issue...
    That's all...

    Translated from Greek ·
    • Value for money
    • Expected capacity
    • Durability
    • Does their performance decrease at a moderate rate?
    Did you find this review helpful?
  • 5
    staaaak

    Verified purchase

  • singx23
    3
    singx23

    It arrived at 3.65v...
    Now I'm doing the first charge after discharge to see what it's like...
    And I'll come back with measurements...
    Initially, it gave me 200mah...
    The circuit cut off at 3.10v...
    Now I will fully charge it and then fully discharge it...
    I'll be back shortly...
    Charge at 2350mah and the circuit cut off at 4.27v...
    Now let's go for discharge....
    1450mah on discharge...
    The tests were done on a power bank so with the increase in voltage from 3.6-3.7v to 5v there will logically be some loss in conversion....
    Overall, I would say it's okay...
    It's worth its L7...
    Now how long the battery itself or the protection circuit will last, remains to be seen...
    I tried to put two of these in a vacuum cleaner but they didn't work because the protection circuit cut off due to a load greater than they could handle..
    For simpler solutions like in a radio where I put one, it's okay...

    In total, I have taken three...
    I have put one in a radio and the other two are sitting for future use...
    One day as I was looking at them I noticed that through the wrapping it wrote the type of battery... That is bak a05.... I don't know if all are of the same brand.... It happened that one was visible through the wrapping.. The wrapping sleeve...
    And also one of them while sitting discharged to 2.5v.... Not a good sign...
    I tried to charge it in an xtar but it didn't charge...
    Then I tried to charge it in a 18650 flashlight but again it charged sometimes and sometimes not... It suddenly showed full... Outside the charger it dropped to 2.5-2.8v.. And now I'm trying in a power bank that takes 18650...
    And here it acts up, sometimes charges and sometimes not but slowly raises voltage and charges slowly... Let's see if I can save it... Otherwise, it will be returned...
    Or maybe I'll drop the issue...
    It's not worth much..
    BAK in general when new are somewhat tolerable even though they are in the budget category, as they age they show problems more than other branded ones...
    I've taken out some like these from laptop batteries and I have an idea...
    But it's not that I haven't encountered branded ones that when they age they act up....
    It's a complex issue...
    That's all...

    Translated from Greek ·
    4
  • 5
    staaaak

    0
  • See all
4,99 €
5,00 €   shipping cost