Nach 2 Monaten kaputt

Excellent

Pros:- Inexpensive.- Cables remain flexible in Cold Temperatures.- Easy to Operate.- Intuitive Operation.- Gives a General Assessment of Battery HealthCons:- No Specifications of What Load is placed on the Battery being Tested.- Lowest CCA Setting is 100 Amps. To Large a Setting for most UPS Batteries.- Instrument Accuracy and Precision may not be the best.Physically, this battery tester is lightweight, portable, and has heavy duty enough battery cables and clamps that are flexible in weather down to 0 F. (coldest I tested). The digital readout is easy to see but does get a little slow and iffy at colder temperatures. Having only owned the tester for less than a week, I cannot speak to long term durability but I expect it will hold up to my needs if I store it in the original packaging that it came with. For the cost, I can afford to have a few as backups and in different tool boxes.I purchased this Battery Load tester to assess the health of a large number of AGM batteries from UPS Battery Backups. Those batteries are usually 12 volt, 9 AH batteries but with a range from 6 AH to 12 AH. A couple UPS's use 6 volt batteries in series. Most of the time, the UPS indicates the batteries are fully charged in the unit but the unit fails under a load when the supplied power is turned off. This indicates the battery is "bad" and I replace them (catastrophic failure scenario). I needed a way to assess when the batteries had not failed catastrophicly but did not have the minimum capacity I desired to make the Battery Backup worthwhile. I also needed to assess the battery health capacity after using a Smart Pulse Battery Charger repair function. Hence the battery tester.This Battery tester gives a measurement of battery voltage that is probably accurate within 3%-5% of the reading from my digital Multimeter. The reading is actually fairly reproducible so the precision is good. Voltage is not really a good measurement of battery health since a weak battery that is fully charged can give a voltage reading similar to one where the capacity is high.This battery tester also gives readings of resistance, Cold Cranking Amps (CCA), State of Charge (SOC), and State of Health (SOH). The latter two measurements are based off the value of the CCA that are user input. Battery resistance is a good indicator of a problem battery IF you have a good knowledge of how that particular battery type (SLA, AGM, Gel, Std. Wet Cell) operates and performs. For the 12 volt AGM batteries I regularly test and use, the resistance of a fully charged battery in good/excellent health runs 24 Ohms - 39 Ohms. Batteries that are sulfated, low on electrolyte/water will have a resistance reading greater than 100 Ohms. Failed cell batteries can have infinite resistance and will not operate the tester or take a charge.Cold Cranking Amp readings for the battery is the most important reading for the battery health. It is the measurement of the actual battery capacity left. The State of Health reading is simply a ratio of the actual measured CCA vs. the value of the battery CCA initially input. SOH can be inaccurate if the input CCA is different than the actual battery capacity. If the input CCA is inaccurate due to the actual new battery CCA being below the minimum level the Battery Tester will accept, the SOH reading will be off. SOC measurement on this tester is calculated from the measured voltage and CCA but does not take into account temperature.Still, this Battery Tester gives valuable information when comparing the measured values before and after battery repair charging and comparing to other batteries of the same type, voltage, and capacity.In conclusion, this battery tester does the job I purchased it for. It is inexpensive, light, accurate, and useful enough to have several in case of need. While it may not be the instrument of choice for electronic design engineers or technicians working on delicate precision instruments that require super high accuracy, this Battery Tester is definitely good enoung for the majority of people who need a assesment of whether the battery being tested is "good" or "bad". I recommend it for that.I could have given the tester 4-stars because the CCA range, at 100 CCA minimum, did not go low enough for my needs but, the range was clearly stated in the ad so I am using it knowing that it is not designed specificly for my application. It still works good enough for me.

Facile da usare, testato su diverse batterie e sembra preciso.Ho apprezzato molto il fatto che ti dice lo stato di vita della batteria, e che funziona senza pile, utilizza la tensione della batteria anche se scarica.Ottimo prodotto lo cosiglio

Använder den till att testa 12V batterier.Fungera enligt förväntan.

Ich habe es gekauft um Batterien von meine Photovoltaik Anlage regelmäßig zu testen. Theoretisch muss man nur wissen, wie hoch ist der SOC % Wert. Wichtig ist der Kapazität wert, Rest ist nicht so wichtig. Dafür reicht der tester völlig aus. Es gibt ihn allerdings auf andere Plattformen für 19 coins ;-)

Das Gerät funktioniert wie es soll. Wie lange das anhält kann ich bis dato nicht beurteilen. Ggf. werde ich die Bewertung nach längerer Benutzung entsprechend anpassen.

Super Gerät. Bedienungsanleitung steht hinten auf der Pappe...reicht. Werte scheinen auch zu stimmen. Habe 5 Batterien (alte und neue) getestet...alle Werte plausibel.

Comprobador de baterias que funciona sorprendentemente bien por el precio. Proporciona el estado de carga y también, más importante, el estado de salud de la baretia, con rapidez. Seguro que hay otros más completos pero por este precio no se puede pedir . He comprado otro más.

Das Gerät funktioniert sehr gut und macht auch optisch einen vernünftigen Eindruck. Der Batteriezustand wird innerhalb weniger Sekunden angezeigt. Es wird unterschieden zwischen "Good, Normal und Poor". So sieht auch jeder Laie sofort den Zustand der Batterie.

I've used it on 5 different batteries and I consider results trustworthy, i.e. item shows new charged battery to be in good condition and old one with electrolyte of low density etc = poor parameters. Clamps are of good quality = providing firm connection.

Keine Betriebsanleitung dabei.

Es sieht gut aus und macht einen Hochwertigen Eindruck. Mehr kann ich nicht sagen da ich das Gerät erst eine Woche habe.