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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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Description
DUOYI DY222 Car 12V / 24V Battery Tester, DY2221. The battery tester is designed for testing the conditions of the 12V & 24V lead acid starting battery, cranking system and charging system. 2. It comes with a large 3. 2 inch color LCD screen and it supports classic touch tone to help you read and operate more efficiently. 3. It utilizes 4 wire Kelvin method to complete the collection of a series of complicated data for calculating every testing data with a build in precise circuit and improved
1. The battery tester is designed for testing the conditions of the 12V & 24V lead-acid starting battery, cranking system and charging system.2. It comes with a large 3.2-inch color LCD screen and it supports classic touch-tone to help you read and operate more efficiently.
3. It utilizes 4-wire Kelvin method to complete the collection of a series of complicated data for calculating every testing data with a build-in precise circuit and improved digital processor.
4. Moreover, some circuit improvements including polar reversal protection, over-voltage input protection, and loose lead detection. ensure safety and convenience during testing.
5. Supported15 Languages: Chinese, English, Deutsch, Italiano, Le Francais, Espanol, Portugues, Magyar, Polski, Slovenskeho, Cesky, Pyccknn, Nederlands, Svenska, Japanese.
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Excellent timepiece.
Color: Brown/Green/Tan
Rugged Dual timepiece. Male or female for active lifestyle!
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Great for protecting my maps
Size: Regular - 12 x 16 Inches
Fits my exploring maps just right. Heavier duty than expected. Ziplock closure is tight and should last for years.
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Reviewed in the United States on October 14, 2025
★★★★★ 5
Great product
Size: Large - 16 x 22 Inches
Size and durability are great. My husband used these while at a military training
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Reviewed in the United States on April 30, 2026
★★★★★ 4
Terrific addition to your backpacking gear
I like this map holder for its versatility in holding different size maps. Once sealed, it was very effective at keeping moisture out and protecting the maps. I originally used this on a 13K mountain ascent. Worked great. The only thing that can be tricky at times is sealing the top. It's not as easy as sealing a typical zip-loc kitchen bag, takes some doing to get it to seal.
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Reviewed in the United States on May 26, 2025
★★★★★ 5
Best Map Case Ever!!!
Size: Regular - 12 x 16 Inches
Best Map case in the market! Field tested and keeps everything dry. The size is fantastic and you can run paracord through the rings. I would recommend this to anyone that uses a map. You definitely pay for what you get and that's high quality and functionality.
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Reviewed in the United States on August 13, 2025
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