Is it compatible with the 40 volt hartz battery

I'm not sure because I only have a Kobalt battery but this week I will be going to the battery store and see if they have a cheaper battery for this charger then I can let you know if it works with my charge if the battery is not a Kobalt.

Will this charge a Kobalt 40v max 2.5 Ah (this listing has 6.0 Ah) lithoum ion battery?

I have the Kobalt quick charger, 6Ah also. It nicely charges my 4Ah batteries. I think it will charge anything less than its max of 6Ah.

Does anyone know of the off brand jailipok 40v 6mah battery will work with this off brand charger?

Yes, the Jailapok 40v battery will indeed work with this charger. However, this is NOT an off-brand charger; it is a genuine Kobalt charger and it works great.

Does it work for the 4-Amp 40v battery?

Yes; I bought a 2nd charger and battery to add to what was included with the original purchase package of blower, charger, battery. The identifying information is the same on the items. I have been using them successfully for about a year.

Kobalt 40 Volt Power Equipment Battery Rapid Quick Charger Gen3

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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VT17331

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up faster, work smarter, stay unstoppable!

COMPACT LIGHTWEIGHT - Only 2 lbs for easy portability and storage 🏋️‍♂️
LIGHTNING FAST RECHARGE - Cut downtime with rapid 40V charging ⚡
SLEEK DUAL COLOR DESIGN - Choose black or blue to match your pro toolkit 🎨
SMART LED CHARGE INDICATOR - Stay informed with intuitive battery status lights 💡
UNIVERSAL KOBALT COMPATIBILITY - Seamlessly powers all 40V max Li-ion batteries 🔋

The Kobalt 40-Volt Power Equipment Battery Rapid Quick Charger Gen3 delivers efficient, rapid charging for all Kobalt 40V max Li-ion batteries. Featuring integrated LED indicators and a sleek black or blue design, this lightweight 2-pound charger minimizes downtime and keeps your tools ready to perform at peak power.

Specifications

ASIN	B09ZSDH2LW
Best Sellers Rank	#53,014 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #146 in Power Tool Battery Chargers
Brand	BSVI
Color	Black, Blue
Connector Type Used on Cable	Kobalt 40-volt max battery connector
Customer Reviews	4.6 4.6 out of 5 stars (752)
Global Trade Identification Number	00084182101595
Input Voltage	40 Volts
Item Weight	2 Pounds
Manufacturer	Kobalt Tools
Mfr Part Number	3809906
Model Number	KRC 840-03
Number of Ports	1
Output Voltage	40 Volts
UPC	084182101595
Unit Count	1.0 Count

Reviews

J**R

Kobalt rapid charger

Very happy with charger, it is a rapid charger and is very efficient

25.11.2025

G**N

Replacement Charger

New charger works properly. Looks like original unit.

6.11.2025

R**Z

proce

good price

1.11.2025

B**S

Great replacement

Works great as a replacement for the original charger. No problems going on 2ish years.

27.12.2025

M**E

Nice product

Product was in perfect shape and worked like it was supposed to. Came shipped in a clear plastic bag which kind of upset me. It’s not like chargers are made of super rigid plastic so I was surprised it didn’t break or chip.

11.08.2024

D**G

Works for Kobalt 40

This works great for charging a Kobalt 40 V battery and was way cheaper than trying to get one through Kobalt. It didn't change the battery life or charge quality. It fits the 40 perfectly and provides the right amount of power.

19.03.2025

S**N

Might need 2 for some movers

Charges as stated

26.11.2025

H**N

Very happy

20.11.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

VT17331

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

Secure transaction

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Kobalt 40-Volt Power Equipment Battery Rapid Quick Charger Gen3

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Details

Description

Specifications

Reviews

Common Questions