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Sinometer BT558 Self-powered Battery Tester
 
 
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Sinometer BT558 Self-powered Battery Tester

by Mastech
3.8 out of 5 stars  See all reviews (81 customer reviews)
Price: $9.99
Sale: $4.99 & eligible for FREE Super Saver Shipping on orders over $25. Details
You Save: $5.00 (50%)
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In Stock.
Sold by Kaito Electronics, Inc. and Fulfilled by Amazon. Gift-wrap available.
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3 new from $1.69

Frequently Bought Together

Customers buy this item with SE Battery Tester $3.29

Sinometer BT558 Self-powered Battery Tester + SE Battery Tester
Price For Both: $8.28

Show availability and shipping details

What Do Customers Ultimately Buy After Viewing This Item?

Sinometer BT558 Self-powered Battery Tester
45% buy the item featured on this page:
Sinometer BT558 Self-powered Battery Tester Mastech 3.8 out of 5 stars (81)
$4.99
SE Battery Tester
8% buy
SE Battery Tester SE 3.9 out of 5 stars (18)
$4.36
Gardner Bender #GBT-500A Battery Tester
7% buy
Gardner Bender #GBT-500A Battery Tester Gardner Bender 4.5 out of 5 stars (20)
$7.09
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Product Specifications
Item Dimensions
Weight:2.08 Ounces
Length:2 inches
Width:2 inches
Height:1 inches

Technical Details

  • Checks AA, AAA, C, D, 9V types of regular or rechargeable batteries
  • Internal battery not required, lasts forever.
  • Compact size and light weight
  • 90 days money back guarantee and 1 year limited warranty

Product Description

Product Description

Don't you just hate when reaching for the remote control and find out it's not operating because the weaken batteries? How can we test the little battery for remaining power? How much longer can we use those batteries before replacing it? This little compact tester unit is the answer. Just hook up the battery and you have an instant answer.

Product Details

  • Product Dimensions: 2 x 2 x 1 inches ; 2.1 ounces
  • Shipping Weight: 2.1 ounces (View shipping rates and policies)
  • ASIN: B00067V1TG
  • Item model number: BT558
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (81 customer reviews)
  • Amazon Bestsellers Rank: #865 in Home Improvement (See Top 100 in Home Improvement)
    #95 in  Home Improvement > Electrical

    •  Would you like to update product info or give feedback on images?

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Customer Reviews

81 Reviews
5 star:
 (41)
4 star:
 (16)
3 star:
 (5)
2 star:
 (8)
1 star:
 (11)
 
 
 
 
 
Average Customer Review
3.8 out of 5 stars (81 customer reviews)
 
 
 
 
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Most Helpful Customer Reviews

 
84 of 87 people found the following review helpful:
1.0 out of 5 stars Inaccurate as it does not test under load, January 18, 2009
Amazon Verified Purchase(What's this?)
This review is from: Sinometer BT558 Self-powered Battery Tester (Misc.)
The problem with this battery tester is that it only checks for voltage remaining in a battery. Even a 90% used battery can show nearly full rated voltage. It is only when a load is placed on the battery that a true assessment is possible.

For example, a dead alkaline battery and a fully charged rechargable battery (NiMH full charge = 1.2 volts) both read the same low (yellow).

Look for one of the more expensive units that tests under load.
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54 of 55 people found the following review helpful:
5.0 out of 5 stars No more battery guesswork, August 17, 2005
Amazon Verified Purchase(What's this?)
This review is from: Sinometer BT558 Self-powered Battery Tester (Misc.)
This is a great gadget, and it really works. A little arm swings up to accommodate the battery, you place it between the two points, and the easy to read display tells you instantly whether you have a dud, or if you can eke out another few minutes of battery life. Best of all, it can fit in your pocket, so you take it anywhere you have battery operated equipment.

One side of it handles AA, AAA, C and D batteries, and on the other side, there are two buttons for testing those pesky 9 volt batteries, so you'll have no more tingling tongues from the old fashioned "tongue between the terminals" checking method.

Don't expect any fancy packaging, or even the same color as advertised (mine is a dull yellow), but if you have kids and/or lots of battery operated gizmos and gadgets, you'll need one of these - and at the price, why not?

Amanda Richards, August 17, 2005
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29 of 29 people found the following review helpful:
5.0 out of 5 stars worth the money, August 2, 2005
This review is from: Sinometer BT558 Self-powered Battery Tester (Misc.)
It works! And it saves me tons of money, lots of kids, lots of electronics , lots of batteries everywhere. Now I know which ones can be saved and which to recycle. I covered my cost already the first use!
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Most Recent Customer Reviews

4.0 out of 5 stars BATTERY TESTER
A LITTLE HARD TO MAKE BATTERY CONTACT BUT WORKS AFTER YOU GET USE TO IT. PRICE RIGHT - UNKNOWN HOW ACCURATEOF A TEST IT IS SINCE THE BATTERY IS NOT UNDER LOAD. Read more
Published 1 month ago by MR. C

5.0 out of 5 stars I love it.
I love it. It is working in any buttery. Save time to find good buttery. Reduce old staff in my shelf. Very good price, shipping is to mach compare the price.
Published 5 months ago by Marta

1.0 out of 5 stars Does *not* load test batteries - Buy a load tester.
I bought this product to test rechargeable batteries for my camera, wireless mouse, etc.

Although the batteries were nearly depleted, this tester still detected... Read more
Published 5 months ago by C. A. Benson

5.0 out of 5 stars Great Little Battery Tester
I started using the Mastech BT558 Self-powered Battery Tester the day I received it, and after testing more than fifty AA, AAA, D-cell, 9-volt, and button-type batteries, I found... Read more
Published 7 months ago by John Wilcox

5.0 out of 5 stars Had two of these for over 20 years
I originally bought these at a hardware chain in Detroit over 20 years ago. One of them just broke and because we keep one down the basement and one upstairs we want to get... Read more
Published 7 months ago by Sylvia L. Hayes

3.0 out of 5 stars Mastech BT558 Self-poweres Battery Tester
It is a good toy but I received it black color instead of you post blue color online(THAT IS NOT HONEST BUSINESS).
Published 8 months ago by Daniel Yen

5.0 out of 5 stars Compact and Easy to use
This is the perfect size to keep anyplace I may need to check battery strength, car or home. I keep one in each and highly recommend it to everyone. Even a great price
Published 8 months ago by Richard D. Allen

4.0 out of 5 stars Easy to use
I purchased this for my 84 year old father in law to test is remote batteries. I works ok and is easy to use.
Published 9 months ago by Lben

5.0 out of 5 stars great!
this is a great way of double checking batteries you thought were no good - I had several that I was going to throw out, only to find they were perfectly fine! Read more
Published 9 months ago by chefmate

2.0 out of 5 stars Inaccurate reading if not exactly placed
Pro: tests many sizes of dry cell batteries. Inexpensive. Can give accurate reading if you correctly position the battery. Read more
Published 10 months ago by IT Security

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