Wild Badger Power 40V Batteries: Original and Compatible

The Wild Badger Power WB40V4.0AHB 40 Volt battery is the brand’s own 4.0Ah lithium-ion pack in blue. Amp-hours, written Ah, describe how much energy a battery stores. At the same voltage, a 4.0Ah pack holds about twice as much as a 2.0Ah pack, so it runs a given tool roughly twice as long before it needs a charge.

The listing says it works with all Wild Badger Power 40V tools, from trimmers and blowers to pole saws, mowers, chainsaws and snow blowers. LED lights show charging progress, it has minimal self-discharge (it holds charge while sitting on a shelf), and it carries a 3-year warranty for home and commercial use covering defects in materials and workmanship.

This is the safest all-round pick for most owners: genuine, covered by the longest warranty here, and big enough for mowing or chainsaw work. If you only run a trimmer or blower for a few minutes at a time, the lighter 2.0Ah pack may feel nicer in the hand.

High score Our score: 9.2/10

DTK

DTK 6.0Ah Replacement for Wild Badger 40V Battery Fit 40V Cordless Tools

9.2/10Our score, based on listed specifications and buyer feedback

See it on Amazon

Price and specifications are read from the Amazon product page and can change.

DTK 6.0Ah Replacement for Wild Badger

Best for: Long sessions on a mower or chainsaw

Pros

• 0Ah capacity
• Multiple built-in protections
• CE, FCC, RoHS listed

Cons

• Third-party, not Wild Badger made
• Cell type listed as lithium metal

The DTK 6.0Ah Replacement for Wild Badger 40V battery is a third-party pack, not made by Wild Badger Power. It offers 6.0Ah at 40V, 50% more than the 4.0Ah original, and the listing says it fits all Wild Badger 40V tools and chargers. It weighs 2.7 pounds and measures 6.5 by 3.94 by 3.15 inches.

DTK lists CE, FCC and RoHS approval and MSDS certification, with a built-in chip that protects against over-charging, over-heating, short circuits, over-current and over-voltage. The warranty is 1 year, and support runs through your Amazon orders page. One oddity: the specs name the cell type as lithium metal, while the features call it a lithium-ion battery; rechargeable tool packs are lithium-ion, so the spec line is likely an error.

This suits someone who mows a larger lawn or runs a chainsaw and wants the longest runtime. If a longer warranty and brand support matter more, the original 4.0Ah is the better choice.

The Wild Badger Power WB40V2.0AHB 40 Volt battery is the smaller genuine pack, 2.0Ah in blue. The listing says it works with all Wild Badger Power 40V trimmers, blowers, pole saws, mowers, chainsaws and snow blowers, and it adds a fast-charging claim and an LED indicator that shows charge level both while charging and during use.

The listing is messy. Its included components line says “20v chainsaw”, and it spends a paragraph describing chainsaw jobs, but the title and specs clearly describe a single 40V 2.0Ah battery. The warranty is given as “3 Y”. Read the product page before ordering to make sure you are getting the battery only.

Pick this lighter pack for quick trimming, edging or blowing off a patio, where less weight on your arm makes a difference. For mowers and chainsaws it will run out sooner than the 4.0Ah or 6.0Ah options. If you are pairing it with an edging tool, our guide to a cordless lawn edger explains what to look for.

FSKE

FSKE Upgraded 6.0Ah Replacement for Wild Badger 40v Battery

8.8/10Our score, based on listed specifications and buyer feedback

See it on Amazon

Price and specifications are read from the Amazon product page and can change.

FSKE Upgraded 6.0Ah Replacement for Wild

Best for: Budget-minded users needing extra runtime

Pros

• 0Ah, 240Wh capacity
• 90-day money back
• Overcharge and short-circuit protection

Cons

• Third-party, not Wild Badger made
• 1-year warranty only

The FSKE Upgraded 6.0Ah Replacement for Wild Badger 40V battery is another third-party pack, model OP4050A. It stores 6000mAh at 40V, which the listing states as 240Wh. Watt-hours multiply volts by amp-hours, so they give the most honest single number for stored energy. It weighs 2.6 pounds.

FSKE says it offers the same performance as the original, with protections against overcharging, over-discharging and short circuits plus a voltage regulator circuit. It comes with 90 days money back and a 1-year product warranty. Interestingly, the listed manufacturer is the same company named on the DTK listing, so the two 6.0Ah packs may be closely related.

This suits owners who want big capacity and value a money-back window. As with DTK, it is not a Wild Badger Power product, so the brand’s 3-year warranty does not apply.

The Wild Badger Power 40V 18-In Brushless Cordless Electric Lawn Mower (WB40V18PLM) is included because it comes with one 40V 4.0Ah battery and a fast charger. If the person you are shopping for does not own any Wild Badger tools yet, this is a way into the system that includes a battery. Brushless motors skip the small carbon brushes older motors use, which generally means less wear and better efficiency.

The 18-inch deck spins up to 3,400 RPM, with five cutting heights and three clipping modes: bagging with the included 11-gallon bag, mulching or rear discharge. The listing estimates up to about 5,445 sq ft per charge and typically up to 60 minutes per pack, and notes that runtime varies with grass, terrain and temperature. It weighs 37.5 pounds, has a folding handle and a 3-year limited warranty.

This fits small-to-medium lawns and users comfortable pushing a mower. If you already own a Wild Badger tool, a standalone battery is the simpler buy.

The Wild Badger Power 40V Cordless Clip-on Charger (WB40VCH) charges all of the brand’s 40V batteries. It takes 120V household power at 60W and outputs 42V DC at 1.0A. It actively controls current, voltage and temperature to protect battery life, and LED lights show progress.

The title calls it 1A fast charging, while the features say a smaller charging current means longer battery life, which is closer to the truth: 1A is a gentle rate, so a big pack takes a while. The listing weight is 12.8 ounces, but the listed dimensions of 12 by 16 by 5 inches look like packaging size.

This suits households with several batteries that want a second charging spot, or anyone who lost the original charger.