We test starting devices of different types
On the eve of the winter season, we compare launchers of three different types. All of them were not without sin.
Kolodochkin Mikhail “At the wheel” Expert
The idea of the test was suggested by the appearance on the market of a capacitor starter for cars with run down batteries. Claimed current – as much as 800 amps! Capacitors are not afraid of frost, they are difficult to disable, and they do not explode like lithium batteries in smartphones. In theory – solid pluses.
Test of the best portable jump starter – usefuldiary.com
In practice, the advantages and disadvantages of devices are best identified in comparison with their like. But the bad luck, no one offered any other capacitor devices with such high currents at the time of preparing the material. Then the idea arose to compare the novice with other types of devices – launchers based on lithium and lead batteries. Naturally, the company was selected with the closest possible declared figures.
The tests were carried out according to the method of GOST R 53165–2008 on 6ST ‑ 60A batteries prepared in accordance with the requirements of this standard. All devices were discharged to the final voltage at the terminals 10.5 V. Measurements were carried out at temperatures of +20 and –20 ºС. Each device was pre-trained in charge / discharge cycles, and then charged
The potential winner, for whom everything was started, behaved strangely. The claimed 800 A turned out to be a Berkut Specialist JSC ‑ 800 device clearly out of tune. Eight times we tried to load it with these amps, preloading it to the eyeballs and giving a breather, but every two or three seconds the voltage at the launcher’s terminals dropped below 6 V. In his best attempt, he gave out 780 A, holding out only three seconds. And this is at room temperature!
In the cold, there were no surprises. The maximum current in the best attempt was 776 A, and in the worst – only 506 A. And every time after just a couple of seconds, the voltage at the terminals rapidly fell below 6 V – the standard car electronics always strike at such voltages.
The representative of the old guard jumper Jumpstart SH-309B frankly failed. The reason is the same – hats. Why aim at 900 A, not to mention the 1600 A at the peak? At room temperature, the booster died already after a second, trying to give out 880 A. In the cold, the maximum current fell to 808 A, the torment lasted no more than a second. Perhaps modest currents in a hundred or two amps would have been able to, but we were not interested.
As a result, all hopes turned to the lithium starters popular today. In this play, Garwin Lion 800 Start was the best. This is the only device that thrice issued two starts without recharging, lasting 5 seconds each. In this case, the voltage at the terminals was, as they say, with a margin. In the cold, as expected, the speed was noticeably diminished, although the current about 500 A booster tried to give out. The duration of each attempt is two or three seconds, but every time at the end of the attempt, the voltage jumped at the border of 6 V. Not very good, but much better than the others.
Why so sickly? Most likely, the developers simply overdo it with promises. And this is very disappointing, because the capacitor device is, in general, working. We even let them have an editorial car with a discharged battery – the starter spun the starter easily. But it was in the summer, but because the currents were needed small and the motor started with a half turn. Of course, with more modest currents and in more greenhouse conditions, the results would have been more fun. But we started checking with the stated currents of 200–300 And more than once, but this time we wanted to evaluate the abilities of the “supermen” working with the reserve. However, the stock turned out to be quite tiny.
Materials on the topic
Tension: 9 questions about batteries
Do you need such currents in practice? Yes, it is quite possible – for example, to start a three-liter diesel in hard frost. And even the machines are weaker every 50 A of the current and every second of scrolling can be decisive in the question “are we going or not going?”.