Best 18650 battery chargers in 2018

There are a few things you need to take into consideration when choosing your battery charger. Some people may not want to have too many bells and whistles, while geeky users like me want to control every bit of the charging process. Safety is also of the utmost importance. Unfortunately, most chargers on the market are questionable, and many can even do more harm than good. Please don't buy a charger just based on the cheap price! The list only includes chargers for round cells that use slots, unlike a hobby charger. Hobby chargers will not be taken into consideration here.

Below you can find a list of chargers that have been tested thoroughly by BLF and CPF member HKJ. The complete reviews will be linked to in the descriptions.

Best single slot chargers

When you are looking for a simple, 1-bay charger.
Great for traveling and to keep as a backup... because you better have a backup charger at all times! 

Small USB charger for lithium, NiCd and NiMh batteries!

  • AA, AAA, NiMH, NiCd, LiFePO4 (3.2V), Li-ion 4.2V(3.6V) and Li-ion 4.35V (3.8V)
  • Can handle long batteries
  • Input 5V USB only.. no mains
  • 0.5A-1A charge current
  • Charges only! (no discharge function)
  • Read full review here

Besides charging Li-ion batteries like the 18500, 18350, 18650 and even the 26650, it can also charge rechargeable AA and AAA batteries. According to the test it terminates AAA batteries a little early, but that is actually safer than overcharging, so it’s not really an issue. The charger doesn't heat up during charging either, and it only costs $10.

Small Micro USB charger for lithium, NiCd and NiMh batteries!

  • AA, AAA, NiMH, NiCd, Li-ion 4.2V(3.6V) 
  • Can handle some long batteries
  • Input 5V USB only.. no mains
  • 0.5A-1A charge current
  • Change current depending on the slider.. so the shorter batteries get charged at 0.5A, larger at 1A.
  • Charges only! (no discharge function)
  • Read full review here

This Micro USB Li-ion charger is about as good as the Klarus K1, except for a few things. It can not charge LiFePO4 batteries, and the charge current for a 10440 battery is a little high at 0.5A. Still a recommended charger for single cells.

Small charger with normal power plug.

  • AA, AAA, NiMH, NiCd, LiFePO4 (3.2V), Li-ion 4.2V(3.6V) and Li-ion 4.35V (3.8V)
  • Can handle some long batteries
  • Display with details and settings to change
  • 0.5A-2A charge current
  • USB Out with 2.4A max
  • Charge current can be manually set
  • Inclusive Discharge function, Analyzer, IR (impenance) test and Refresh function.
  • Read full review here of the original 1, and for the updated version.

The recommended 1-bay charger if you just want to have more control over the charger/analyzer. You can charge, discharge, test capacity, text impedance, refresh the batteries etc. Even 32650 batteries fit.  Highly recommended.

Best 2-bay chargers

2-bay charger with normal power plug.

  • AA, AAA, NiMH, NiCd, LiFePO4 (3.2V), Li-ion 4.2V(3.6V) and Li-ion 4.35V (3.8V)
  • Can handle most long batteries
  • 0.1A-1A charge current
  • USB Out with 2.4A max
  • Charge current can be manually set
  • Read full review here 

Armytek being a flashlight brand, also has some chargers. Charging your batteries with this unit should not be done at 0.1A, as it will terminate prematurely. Lithium batteries charge fine with 0.5-1A. If you want to use it for AA batteries as well, maybe look at the Xtar. Can charge with main power cord as well as with a 12V car adapter. No USB ports!

2-Bay multi chemistry charger.

  • AA, AAA, NiMH, NiCd, Li-ion 4.2V(3.6V) and Li-ion 4.35V (3.8V)
  • Can handle long batteries
  • 0.2A-1.5A auto charge current
  • LCD Display with current, voltage etc.
  • Refresh function, Capacity check.
  • Read full review here 

This one includes a fan, which only turns on while discharging. Auto charge current for older NiMH cells can be a little problematic, meaning it cannot detect the -dV/dt cut off point. LifePO4 is not recommended with this charger. For 3.7V (4.2V)Lithium Ion batteries its doing a good job. 

2-Bay multi chemistry charger.

  • AA, AAA, NiMH, NiCd, Li-ion 4.2V(3.6V) 
  • Can handle long batteries and wide batteries like D cells and 32650 batteries
  • 0.25A-2A charge current
  • Small LCD Display with readings
  • No discharge or refresh funtion
  • Read full review here 

It can handle all kinds of chemistries and sizes. Ranging from 10440 to 32650 and D batteries. It doesn't work with LifePO4 batteries. Simple, and fast charger! 

Best Lithium Ion Charger with 4 bays

4-Bay special charger with powerbank feature

  • AA, AAA, NiMH, NiCd,Li-ion 4.2V(3.6V)
  • Can handle the longest batteries
  • 0.1A-3A charge current
  • USB out at 1A ( powerbank function)
  • Large LCD Display
  • Read full review here 

This charger is one of the fastest chargers on the market that can charge 26650 batteries at 3A.

xtar-vp4-plus-dragon-mobile

Xtar VP4 Plus Dragon

4-Bay premium charger.

  • AA, AAA, NiMH, NiCd, Li-ion 4.2V(3.6V)
  • Can handle long batteries and wide batteries like D cells and 32650 batteries
  • 0.5A-2A charge current
  • USB out at 2.4A (only available when using the DC power plug, so no powerbank)
  • Includes probes for testing
  • Discharge, Refresh, Capacity Test options.
  • Large LCD Display
  • Read full review here 

The charger has a DC connectore for power, and 2 USB connectors, of which 1 is for the IR testing probes and 1 for output. It has a variety of options, like discharge, refresh, capacity test etc. The numbers are nice accurate. It can even do a 3S battery pack balancing charge. This is a recommended luxury charger.

4-Bay USB charger for dummies

  • Li-ion 4.2V(3.6V) only
  • Can handle long batteries
  • Lithium Ion battery charger only
  • 0.5A-2A charge current
  • USB in
  • No display
  • Read full review here 

The previous version had a weak power supply, and couldn't handle the max current. The new one (now available) has a better power supply and can deliver more current for better charging. This is a very very simple charger that does the job, and nothing more! Simple charger for $15-$20

The second best 18650 analyzer

  • AA, AAA, NiMH, NiCd, LiFePO4 (3.2V), Li-ion 4.2V(3.6V) and Li-ion 4.35V (3.8V)
  • Can handle long batteries
  • Can charge 4.35 batteries with hidden switch
  • 0.2A-2A charge current
  • Can handle most cylindrical battery on the planet
  • Large display
  • Read full review here 

Before I owned the SKY RC3000 I used the Opus BT C3100 mostly for my 18650 batteries, besides an old Xtar. The charger can handle AA, AAA, Lithium and even 4.35V lithium batteries (after using the hidden switch on the inside). It charges, discharges, does capacity checking etc.. for below $40. Highly recommended! Especially for people who want to diagnose the quality of their batteries. Please beware that you buy the latest version with the better power adapter.

The best 18650 charger.. period..

  • AA, AAA, NiMH, NiCd, LiFePO4 (3.2V), Li-ion 4.2V(3.6V) and Li-ion 4.35V (3.8V)
  • Can handle long batteries
  • Maximum control over every detail
  • 0.2A-3A charge current
  • Can handle literally every cylindrical battery on the planet
  • Large display
  • Bluetooth compatible
  • PC connector
  • Read full review here 

This charger does everything you can think of. You can charge all kinds of chemistries. You can discharge, test, plot, check, read, listen, whatever with this charger. This is my go-to charger analyzer! You can set your own programs, own currents, etc.. This is really the most advanced charger in the world. Period. If you want maximum control over your charging? Get this one, and be done with it.

Best Lithium Ion Charger with 8 slots

enova-gyrfalcon-all88

GyrFalcon All-88 2017 (ENOVA)

8-bay lithium charger

  • AA, AAA, NiMH, NiCd, LiFePO4 (3.2V), Li-ion 4.2V(3.6V) and Li-ion 4.35V (3.8V)
  • Can handle long batteries and the widest D and 32650 batteries 
  • 0.1A-1A charge current
  • Small display for each slot
  • Read full review here 

Relatively new player in the market, but it starts of pretty well. They even include some spare parts and spacers. The small display shows the voltage, charge current and chemistry of the battery. It can even charge 8 batteries at 1A.. very impressive. The charger does get hot of course. It can even charge 4.35V batteries and LifePO4. There aren't many 8 bay chargers on the market, and this is rather an impressive charger.

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