Have you checked the batteries in your phone? Do you have a charger with you? It is a question that continues to circulate around us. Batteries and Chargers can be found everywhere, and they power our everyday devices. Have you ever considered learning more about them? So, keep reading because we’ve compiled a list of the best rechargeable batteries and chargers.
Table of Contents
What are rechargeable Batteries?
As the name suggests a rechargeable battery is a type of energy storage device that can be recharged after being discharged by passing a direct current through its terminals. Rechargeable batteries enable multiple cell usages, reducing waste and providing a better long-term investment.
Types of Batteries
18350 Batteries
18350 Batteries are high-capacity, high-efficiency rechargeable batteries that use advanced Lithium-ion chemistry. It is widely used in high-drain devices such as flashlights, cameras and other photographic equipment, medical and security systems, etc. The physical dimensions of an 18350 battery are very similar to those of several other battery sizes, making it “almost” compatible with such batteries.
18650 Batteries
The 18650 battery is a rechargeable lithium battery with a voltage of 3.7 volts. These rechargeable batteries are similar to AA batteries but slightly larger in size. These 18650 batteries are also known as Li-ion batteries. The advantage of these rechargeable batteries is that they are very light. In addition, they have a high energy capacity and are resistant to discharge. Furthermore, those can withstand numerous charging cycles. The 18650 battery can be used in a variety of electronic devices. From flashlights and bike lights to powerful devices like drills, electric cars, electric bikes.
20700 Batteries
The 20700 battery is a lithium-ion cell with dimensions of 20mm in diameter and 70mm in length. They are slightly larger than an 18650 battery, making them a specialized size cell. Lithium batteries generally have greater capacities than standard alkaline cells and typically necessitate the use of a protection circuit board (PCB) to limit and monitor elevated discharge rates and temperatures. These batteries typically have a high discharge and current draw rate while maintaining a low operating temperature, making them ideal for niche markets of high-drain devices and electronics.
21700 Batteries
A 21700 battery is a lithium ion rechargeable battery with a high capacity. The 21700 cell has a voltage of 3.7 volts and a capacity of 3000 to 5100 mAh. Many products, including cars, electric bikes, and vapes, use 21700 batteries. Because 21700 batteries can deliver more power, they are becoming more popular in electronics
26650 Batteries
Lithium-ion 26650 batteries are a popular choice for high-drain devices that also need large-capacity batteries. It has a low self-discharge rate, and a high number of charging and discharging cycles. A 26650 battery can produce high voltages while remaining safe and efficient, making them ideal for high-powered LED flashlights. Lithium-ion 26650 rechargeable batteries are very similar to 18650 batteries, but they have twice the volume and thus twice the capacity/drain currents.
Enough of batteries? Now, let’s take a look at chargers. We’ve compiled a list of some of the best battery chargers below;
Best Battery Chargers 2022
NiteCore i2 Intellicharger Two-Channel Charger
The Intellicharge i2 is a universal, automatic smart charger that is compatible with almost all types of rechargeable batteries, eliminating the need for multiple chargers. It is capable of charging two batteries and takes automatic current selection based on battery capacity.
Product Specifications:
| Type | Intelligent Smart Battery Charger |
| Size | 5.19″ x 1.37″ x 2.75″ Weight: 0.3lb |
| Brand | NITECORE |
| Model | NEW I2 |
| Compatible Battery Types | Li-ion / IMR / LiFePO4: 26650, 26500, 25500, 22650, 22500, 21700, 20700, 18700, 18650, 18500, 18490, 18350, 17670, 17650, 17500, 17350, 16650, 16340 (RCR123A), 16500, 14650, 14500, 14430, 14350, 13650, 13500, 13450, 12650, 12500, 12340, 10500, 10440, 10350, 10340, Ni-MH / Ni-Cd: AA, AAA, AAAA, C, D Twice the charging speed of the i2 Charger Active Current Distribution (ACD) technology Compatible with 1.2V, 3.7V, 4.2V and 4.35V batteries Charging program. |
| Cycle Life | Over 1000 recharges (source – NITECORE specifications) |
| Standards | CE, RoHs, UL & SGS |
| Input | AC 100 – 240V DC 9 – 12V |
| Output | 4.35V ± 1% /4.2V ± 1% / 3.7V ± 1% /1.48V ± 1%, 500mA x 2/1000mA x 1 |
Efest LUC V4 Charger | 4-Bay Charger
This charger has a one-of-a-kind LCD screen that displays highly accurate voltage information as well as the charging status of each battery separately. When charged batteries are installed, the EFEST LUC V4 Charger can be used as a USB power bank to charge your favorite electronics such as tablets, smartphones, and portable gaming systems. This charger, which is compatible with most 3.6 to 3.7V Li-ion batteries, is ideal for those who need to charge multiple flashlight batteries, such as 18650 or 18500. This charger is sold separately and comes without batteries.
Product Specifications :
| Type | Li-Ion/Li-Mn Battery Charger |
| Brand | EFEST |
| Model | LUC V4 |
| Color | Black |
| Input | AC 12V/24V |
| Output | 4.2V-4X0.5A, 4.2V-2X2A, 1000mAh |
| Compatible Batteries | Li-ion: 10440, 14430, 14500, 16340 / RCR123A, 17335, 17670, 18500, 18650 |
| Cycle Life | Over 1000 recharges (source – EFEST POWER specifications) |
| Standards | CE, RoHs, UL & SGS |
| Screen | HD Mini LCD Screen Compatible with 3.6/3.7V Li-Mn / Li-ion Batteries |
Efest SLIM K1 Charger
The Efest Slim K1 Charger is a high-quality, one-slot Li-Ion battery charger with a portable design, 1A charging, MicroUSB input, and an LED indicator light.
Product Specifications:
| Number of Bays | 2 |
| AC Input | 100V – 240V (50/60Hz) |
| DC Input | 5V (1A) |
| DC Output | 5V (1A) |
| Auto-Recharge Voltage | 4.10V 1A CC |
| Current | 1000mA |
| Cutoff Voltage | 4.2V |
| Standby Current | <20 mA |
| Activation Current | 50mA – 100mA |
| Compatible with | 10440, 16340, 14500, 14650, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 26500, and 26650 |
Avatar AA/AAA Charger
The Avatar AA/AAA Ni-MH Battery Charger was created specifically to charge AA/AAA Ni-MH batteries. The LED charge status indicator indicates when charging is complete. The battery charger is compatible with both AA/AAA Ni-MH batteries.
Product Specifications:
| Type | AA/AAA Ni-MH Battery Charger |
| Brand | AVATAR |
| Color | Black |
| Input | DC; 5V 500mAh |
| Output | AA/AAA 1.4V 180mAh |
| Compatible battery Type | AA/AAA Ni-MH Batteries |
| Cycle life | Over 1000 recharges (source – Avatar Controls specifications) |
| Standards | CE, RoHs, UL & SGS |
