Is this the type of jumper that you charge inside, by plugging it in, then you are able to jump-start your car with nothing plugged in.

Yes, you can charge it in the house or garage, then you can carry it down the driveway, or down the street... My last one I would charge it up about every 4 weeks to every 6 weeks. I believe I was able to Jump-Start 3 vehicles, but possibly a 4th one, without any issues.... Although this Unit is not really light like one of those Small Hand Held Units, These Units are larger/heavier ones. They can handle Stronger Boosts, and For Longer Periods Of Time..... I'm also getting Battery Tester. Amazon has one for $12.88 Prime 2-Day Shipping. That way I know if it's a Battery Issue, Alternator Issue, or when it's showing a Full Charge, then only starts with someone Jumping the vehicle, then it's probably the Starter....

is there a DC converter from 120v to 240v? my country (singapore) is using 240v wall socket

Yes, I've ordered a small one (200watts) recently off Amazon. The Simran SMF-200 Delux Step Down Voltage Converter...

can you use it to charge a cell phone? Could you use it to run portable dvd players?

Yes and yes. As long as you don't exceed 5 amps. And I believe those two things qualify

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STANLEY J309 600 Amp Jump Starter

Product ID: 1202394

Details

Battery Cell Composition
Lead Acid
Brand
STANLEY
Product Dimensions
10"D x 4.5"W x
Vehicle Service Type
Passenger Car
Voltage
12 volts

⚡600 peak amps power

💡270° rotating LED light

🔋Triple USB charging ports

747 zł

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Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Never get stranded—power up your ride and your life!

ALL WEATHER READY - Reliable performance even in freezing temperatures
SMART SAFETY ALERT - Reverse polarity alarm prevents connection errors
INSTANT POWER BOOST - 600 peak amps to jump-start V6 engines effortlessly
BUILT IN CONVENIENCE - Integrated charging cube works with standard extension cords
MULTI DEVICE CHARGING - Triple USB ports keep your gadgets powered on the go

The STANLEY J309 is a compact, portable 600-amp jump starter designed to quickly revive V6 vehicles and more. Featuring a reverse polarity alarm for safe connections, a 270-degree rotating LED work light, and triple USB ports for device charging, it’s engineered for reliability in cold weather and convenience with an integrated charging adapter.

Specifications

ASIN	B001U04NCA
Amperage	300 A
Battery Capacity	7 amp_hours
Battery Type	Lead Acid
Best Sellers Rank	#562,154 in Automotive ( See Top 100 in Automotive ) #801 in Jump Starters
Brand Name	STANLEY
Compatible with Vehicle Type	Passenger Car
Customer Reviews	4.1 4.1 out of 5 stars (2,780)
Global Trade Identification Number	00897450002377
Included Components	Power Station
Item Dimensions D x W x H	10"D x 4.5"W x 11"H
Item Type Name	Portable Power Station Jump Starter
Item Weight	8.5 pounds
Manufacturer	STANLEY
Manufacturer Part Number	J309
Manufacturer Warranty Description	1 year warranty
Model Number	J309
Number of Items	1
Number of Packs	1
Peak Output Current	600 A
UPC	897450002377
Unit Count	1 Count
Voltage	12 volts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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747 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered 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 Poland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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