• The brightest flashlight is now the Imalent M18 which shines at 100,000 lumens. It costs about $670.
• Another very bright flashlight is the Acebeam X70 shines at 60,000 lumens. It costs around $550.

The Brightest Compact Flashlights and Headlamps

• The Acebeam X80-GT is the brightest compact flashlight — it shines with an impressive 32500 lumens. It costs around $280.
• The brightest headlamp is the Lupine Betty Rx14 — it shines with 5000 lumens and costs around $1095.
• The brightest flashlight that uses AA cells is the Nitecore EA81. It shines at 2150 lumens. It takes eight AA batteries and costs about $120.
• The brightest headlamp that uses AA cells is the Fenix 15-U — the maximum output is 900 lumens. See a full review.
• The brightest headlamp that uses 16580 cells is ThruNite TH30 — maximum output is 3350 lumens
• Surefire has released the Titan Plus, a new keychain flashlight that produces 300 lumens at the highest light mode. It costs about $81. See the full review.

Brightest Compact Light: Acebeam X-80-GT

The Acebeam X8-GT0 shines at 32500 lumens — impressive for such a compact light!

It runs on six 18650 rechargeable batteries and has a beam range of 525 meters.

It is waterproof and impact resistant to 1.2 meters.

Home page: Acebeam

Another Bright Compact Flashlight: Thrunite TN36 UT

The Thrunite TN36 UT6 is a compact flashlight that outputs an impressive 7300 lumens. It runs on four 18650 rechargeable batteries. It’s waterproof to IPX-8 Standard (1.5 meters) and impact resistant to 2 meters.

The Thrunite TN36 UT6 is available on Amazon for about $230

The Brightest LED Flashlight That Uses AA Batteries: Nitecore EA81

The brightest flashlight with AA batteries is the Nitecore EA81, which shines at 2000 lumens. It takes eight AA batteries and costs about $200.

It’s waterproof to IPX-8 Standard (1.5 meters) and impact resistant to 1.5 meters.

The Nitecore EA81 is available on Amazon for about $280.

The Brightest Keychain Flashlight: Titan Plus

Surefire has released the Titan Plus, a keychain flashlight that produces 300 lumens in its highest light mode. Before this release, the brightest keychain light produced about 80-120 lumens, so this threefold increase is significant.

I’ve purchased this light and will be testing it soon. The 300-lumen mode lasts about 1 hour using a AAA Ni-MH battery.

All Surefire flashlights are designed and built in the USA, although some components are still sourced outside the US. Surefire says:

We do import a few components – most notably, the finest light emitting diodes (LEDs) from top-notch manufacturers outside the country – to incorporate into our products. All of that said, we do rely on as many American-made parts and components as possible, and the assembly of these components is done under our watchful eye in the U.S. to ensure optimal quality.

The Titan Plus is available from Amazon for about $81.

The post The Brightest LED Flashlights appeared first on Reactual.

• EBL 3.7V Li-ion Rechargeable Batteries — 3000 mAh
• Kiminors 3.7V 18650 Rechargeable Battery — 3200 mAh

Our recommended 18650 battery charger: XTAR VC2

About 18650 Batteries

What are the advantages of 18650 batteries? They are 3.7-volt lithium-ion batteries that can be recharged and are compatible with a wide range of electronics, including laptops, digital cameras, flashlights, and even electric car batteries.

Panasonic, Sanyo, Samsung, and LG are the top level 18650 cell manufacturers, making long lasting cells in a standard size (18 mm by 65 mm) that fits all 18650 compatible devices. Chinese knockoffs are available for cheaper but are prone to shorter lifespans and aren’t always uniform in size. As a rule, be wary of “protected” 18650 batteries, which have small circuit boards at the bottom that do not fit some electronics, such as flashlights.

High-drain batteries are safer and designed for high current devices, such as vaporizers. They are also less wasteful, meaning they have a longer life cycle and can last for more recharges.

18650 Battery Chargers

The best part about 18650 batteries is that they can be recharged. That means you will need a reliable charger to keep them energized and in working order. I like the XTAR VC2 charger because it has an informative LCD screen display.

The LCD screen tells you the real mAh capacity of your batteries, so you can make sure they are getting the advertised amount of fill or identify when they are losing efficiency.

The post The Best 18650 Batteries appeared first on Reactual.

Yes, they are finally available. However, only a few Chinese companies manufacture them. These batteries are AA and AAA rechargeable lithium polymer batteries that output 1.5 volts.

• Tenavolt Lithium-Ion AA Batteries (2775 mWh)
• Deeleepow Lithium-Ion AA Batteries (3400mWh)

Lithium-ion batteries normally operate at 3.7V per cell. The circuitry inside the cells reduces the voltage to 1.5 volts. The batteries have a capacity of 3400mWh, which matches Eneloop Pro (NiMH batteries with the highest capacity). Additionally, lithium-ion cells are lighter than NiMH cells.

Other Lithium-Ion Rechargeables

There are also some lithium-ion rechargeable batteries made for high-performance flashlights and cameras in these sizes: 18650 and CR123.

A single 18650 battery can replace two CR123A batteries, although at a lower voltage (but much higher amperage). However, the 18650 is a wider cell and will not fit into a flashlight designed strictly for the narrower CR123As. Most modern tactical LED lights are designed to use a single 18650 or two CR123As, but it’s best to check before buying. See our article on The Best 18650 Batteries for more information.

There are also numerous other types of lithium-ion batteries made for specific laptops and other electronic gadgets. There is currently no standard size for these lithium-ion cells.

The post Do Rechargeable Lithium-Ion AA Batteries Exist? appeared first on Reactual.

• ZTS MBT-1 can test more than 30 different battery types and gives meaningful, accurate readings.
• The ZTS Mini is an affordable and portable alternative. It tests 15 battery types.

The Details

Musicians, professional photographers, hobbyists, parents, and anyone else who is a frequent battery user should invest in a quality professional-grade battery tester. Be cautious of the slew of cheap Chinese battery testers available for sale on the internet. These products do not give an accurate reading, and instead will do little more than tell you whether or not your battery is dead.

Consider the Amprobe, the best selling battery tester on Amazon. It is available for $7, which sounds too good to be true because it is. As expected, it is flimsily constructed and gives iffy reports on rechargeable batteries. As many reviewers noted, it is only good at identifying dead batteries. Worse, it gives inaccurate battery readings and gives artificially high “good” readings on batteries that are on the precipice of death. That can cause unfortunate mix ups, like taking a battery “good” on charge to an important photo-shoot, only for the flash to die after a few snaps.

Luckily, ZTS makes a quality tester that gives a dependable reading. This battery tester is manufactured here in the United States and gives an accurate measurement in a very short period of time. Just place the battery on the nickel-plated brass contact and wait for the bar at the top to show what percentage charge the battery holds.

It tests almost every battery type, including NiMH, Lithium-Ion, Alkaline Lithium, Coin Cells, CR1620 Cells. It has a row of six LED testers that gives percentage reading of how much life the battery has left.

This is not a portable tester — it weighs over a pound and is 8 inches tall.

A Portable Option

If you want a professional quality battery tester that can fit in a purse or glove box, ZTS has the MINIMBT. The Mini is exactly half the MBT: half the size, it can test half the number of batteries (15), and is half the price.

The Mini tests 1.5v alkaline (AA, AAA, C, D, N), 1.2v NiMH/NiCd, 3v photo lithium, and 9v alkaline batteries.

The post The Best Battery Tester appeared first on Reactual.

Panasonic’s Eneloop Pro AA Batteries.

These are made with Nickel-Metal Hydride (NiMH) chemistry and have low standard discharge, meaning they can hold a charge for years.

AmazonBasics AA High-Capacity Rechargeable Batteries are a reliable low-cost alternative. They are about 30% cheaper than Panasonic cells, but last only 75% as long per charge.

The Details

Panasonic eneloop pro batteries are high-capacity lower-cycle AA battery popular with electronics reviewers and photography enthusiasts. First launched back in 2006, Sanyo eneloop batteries (since acquired by Panasonic) use eco-friendly NiMH cells designed for use with a wide-variety of products, ranging from flashlights to cameras. Up until the eneloop’s debut, rechargeable batteries were prohibitively expensive and couldn’t hold a charge for anywhere near the length of their alkaline competitors.

Eneloop changed that, but still lacked a little when compared to alkaline batteries or newer competitors. Panasonic’s upgraded option, eneloop pro, can maintain a charge for an extended period of time, with a capacity of 2,550 mAh and Low Self Discharge (LSD) technology. LSD tech is thanks to a highly-durable super lattice alloy that prolongs battery life with increased hydrogen stability that leads a stable voltage output and reduced self-discharge. Expect an eneloop pro to still have 85% of its charge after a year and 70% of its charge for ten years.

What really sets eneloop pro apart is the increased performance in high drain devices, such as DSLR cameras and ultra-bright flashlights. Eneloop pro lasts longer and omits more power in these high power consumption devices when compared to similar NiMH rechargeable batteries on the market. Simply put, these are the best choice for photographers and survivalists.

The added power comes at a payoff, however. Eneloop Pro batteries are among the most expensive NiMH batteries on the market, and last for fewer lifetime charges. Panasonic estimates that an eneloop pro can be recharged 500 times, but number is even lower in reality. Compare that to Powerex’s Imedion AA, which boast 1000 recharges.

Another Option

AmazonBasics offers pre-charged high-capacity NiMH batteries for an affordable price. They are rated at 2400mAh, giving them a longer run-time than similarly priced competitors. They are ideal for everyday uses in low drain devices, like TV remotes and electronic alarm clocks.

Wirecutter found that AmazonBasics did not perform as well in high power devices, such as flashlights and digital cameras.

The post The Best Rechargeable AA Batteries appeared first on Reactual.

Currently, the best rechargeable C-size battery is the ELB 5000 Battery. A pack of 6 costs $24.

About C-Size Batteries

Although they are no longer as popular as they used to be, C-size batteries are one of the most common alkaline batteries today. They have kept the same dimensions (50 millimeters by 26.2 millimeters) since 1926 and are used in medium-drain electronics such as toys and instruments. Disposable 1.5V alkaline dominated the C battery market for years due to its high capacity and long shelf life.

Rechargeable C-size batteries are rapidly gaining marketshare over their throw-away counterparts, thanks to crucial technological advances within the past decade. Instead of alkaline, they are using 1.2V Nickel-Metal Hydride Chemistry (NiMH) that allows for greater capacity that doesn’t atrophy after long stretches of inactivity. Whereas in the past rechargeable batteries would drain by themselves via discharge even when they weren’t in use, they now retain up to 85% of their charge capacity for months at a time. No more pulling out a rarely used flashlight the night before a camping trip only to find that the charge has evaporated in your garage.

Of all the rechargeable batteries on the market, ELB offers the best C-size battery. The 1.2V NiMH cells have a 5000mAh capacity, almost as much as the standard 8000mAh of disposable alkaline batteries and much higher than other NiMH cells, and close to the capacity of a lithium cell.

For a charger, I recommend the Maha PowerEx MH-C808M. This smart device can charge 9 C-size batteries at a time.

The post The Best Rechargeable C-Size Batteries appeared first on Reactual.

It’s waterproof to IPX-8 Standard (1.5 meters) and impact resistant to 1.5 meters. It has a micro-textured reflector and it uses the quad-die CREE X-LAMP XHP50 LED.

The Nitecore Caveman EA81 is available on Amazon for about $120.

I recommend powering this flashlight with low-discharge rechargeable AA batteries.

The post The Brightest Flashlight Powered By AA Batteries appeared first on Reactual.

The Best Overall Charger: The Maha Smart Charger

Maha’s Smart Charger can charge any combination of 1 to 8 batteries. You can mix and charge AA, AAA, C, and D sized cells simultaneously on individual charging circuits.

Each battery size also has its own fixed contact charging points (i.e., not a spring). An LCD display shows the charging and conditioning status of each rechargeable battery.

Maha’s chargers can restore batteries to optimal performance by repeatedly charging and discharging them.

It also has intelligent charging technology and overcharge protection.

It is available from Amazon for around $40.

The Most Affordable: The Maximal Power FC999 Universal Rapid Charger

The Maximal Power FC999 Universal Rapid Charger is versatile and reliable. It has a microprocessor to intelligently monitor and control the charging cycle in each charging port for overcharge and short-circuit protection.

It is capable of charging a wide range of batteries, namely: AA, AAA, C, D, N, 9V, Ni-MH (Nickel Metal Hydride), Ni-CD (Nickel Cadmium), RAM (Rechargeable Alkaline Manganese), and even Alkaline (previously Non-Rechargeable).

It’s available on Amazon for about $30

The post The Best Battery Chargers (For D and C Size Batteries) appeared first on Reactual.