Pulse Tech Xtreme Charge Quick Battery Tester 100X822

• Tests 12-volt batteries and alternators
• Fast, safe and simple to use
• Displays open circuit voltage with a percent of charge LED
• Remote battery testing capability with probes designed to work with leave-on charging cable set
• Displays normal or over-voltage alternator output with a Good or Bad LED

Great, easy to use. I have purchased three one for the motorcycle, one for the lawn mower and one for the autos.

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I saw this reviewed in a magazine and found it offered on Amazon with free shipping. It is worth every penny. It is very easy to use and also very accurate. It tests the condition of your battery AND alternator. It is compact and travels anywhere well. No do-it-yourself person should be without this cool tool. Really.

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I bought this to keep with me on some of my long distance motorcycle trips. It packs well (small) and is a handy tool to keep in my tool roll...

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Convenient Battery tester for a quick check of your car battery. With the engine off, connect the charger with the red electrode to the + terminal and the black electrode to the terminal. It gives a good indication of the reserve amount of your battery. Most of the time is shows 75% (or more); this is an indicator that the battery is in good shape. If it is 50%, it could indicate that the battery is starting to experience problems. A 50% reading can be misleading, as a battery at 70% can also give this reading. Also, AGM batteries have given me lower readings than the true capacity of the battery. If it is at 25%, one should get the battery checked or check the charging system.

With the engine on, it will test the alternator with either a red or green light on the top.

There are two issues I have. The first one is the cord for the black(-) electrode is very short. For conventional batteries, it works well. Some batteries are in the trunk and have connectors separated by long distances, and an additional extension (like alligator clip wires) is needed.

The second issue is the indicators shows only 100,75,50,25%. It needs more levels. A battery at 97% and one at 76% will result in only the 75% light being lit. A battery at 70% may only trip the 50% light. So, take several measurements.

Overall, it is worth having for a quick test of the battery and alternator.

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I bought this pocket tester for my Honda CB 750 Nighthawk which I ride almost every day. I also purchased the Pulse Tech MBT-1 and the E-Z Red compact battery hydrometer. All three gave me the same results of 100% on the battery in service and 75% on the spare. This is the cheapest insurance policy money can buy.