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Съвет за тестване на акумулатори

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#16 Krasi.Martinov



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Публикувано 06 януари 2020 - 09:27

Krasi, CTEK-овете винаги започват от 3тия. И на мен ми е правило впечатление, без значение каква кола и размер на батерията.
Единствения индикатор според мен за заряда е колко време му отнема да стигне до иконката с акумулаторчето.

за съжаление започват от 4ти на повечето коли :) тествам със на съседите и с единия ми гоуф6

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#17 kdl


    artful dodger

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Публикувано 06 януари 2020 - 10:58

Koй точно ползваш? Aз съм с MXS 5.0.

Интересно наблюдение, ще я огледам моята на следващото профилактично от къде почва и какво мисли електрониката на колата за състоянието на батерията. Ауди-то се прави на умно и също си прави някакви измервания и решения как да зарежда батерията, което може да се визуализира от диагностиката. Карам основно градско. 

Eто малко инфо от нета:
Rather than just switching on or off like most chargers, the CTEK has a little conversation with your battery to figure out how much charge it needs, when to give it current, and when to leave it alone. A cheap charger can shorten a battery’s lifespan by mishandling current.
CTEK uses 8 distinct and computerized steps to optimize the heath of your battery, even when it’s sitting for a long, long time.

  • Cleaning: The charger sends a series of pulses through the battery to “clean” its internals.
  • Testing: The CTEK determines if the battery can even accept a charge.
  • Rapid charge: The battery is returned to 80% capacity as quickly as possible so you can get back on the road if you need to.
  • Slow charge: This tops off the battery carefully so it isn’t overcharged.
  • Analysis: The CTEK makes sure the battery is holding the charge so power isn’t wasted on a bad battery.
  • Reconditioning: This stage brings the battery back to as close to new as possible.
  • Frequent maintenance: The charger keeps the battery topped off for long term storage.
  • Infrequent maintenance: The CTEK switches to this mode to maintain the battery’s health.

И... разписано доста по-детайлно:
Cleaning, or Desulfation
It’s been estimated that sulfation causes the untimely demise on 80% of all batteries on the road. But what is this chemical villain? Most car batteries are lead-acid units, which are composed- you guessed it- of lead plates submerged in sulfuric acid. Over time, the electricity generated by this union creates a compound called, predictably, lead sulfate, a white powder that builds up and bonds to the lead plates. This means there’s less lead surface area to react with the acid, which means less power.CTEK Battery Chargers 56-353

No, CTEK smart battery chargers don’t have nanobots that swim through your battery scrubbing lead sulfate off of the metal, even though that would be awesome. Their method is much simpler. It uses high voltage, low current micropulses to detach the sulfate crystals and let them sink benign to the bottom of the cell. This pattern does not charge the battery yet. That will begin at the next stage, and the CTEK can detect automatically when it has done all the desulfation it can before moving on.

This works on batteries with as few as two volts left. Step 6 is called Reconditioning, but a huge part of reconditioning a battery begins with Desulfation.

Please high five the nearest scientist before continuing.

Soft Start
Remember that scene from Band of Brothers when Easy Company finds that concentration camp and immediately starts feeding the survivors everything they can, because Easy Company was awesome? The company doctor came around and ordered the feeding stopped, because a severely famished person needs to start on a light, liquid diet before eating solid and richer foods, which could damage a disused digestive tract.

Batteries work very similarly. A severely discharged battery needs a reduced current when it’s first hooked back up, or it could be damaged. The Soft Start stage offers that smaller meal until a battery gets back up to about 10-20%. This principle also works with lithium ion batteries, which is why it takes your cell phone much longer to charge from dead than it does to charge from 20%.

Bulk Charge
Now comes the feast. The battery is now safe to charge with a rapid, high-voltage, constant current until it reaches about 80%. CTEK designed their chargers to make this happen as quickly as possible without damaging the battery so you can start and run your car as needed.

Don’t misunderstand. The other stages are important as well, but so is getting to work on time. 80% is plenty to get your car started and rolling. You can take care of the rest later.

There’s a scene in The Fellowship of the Ring at Bilbo’s birthday party when the Hobbits have all feasted and are now nibbling on things. Tolkien describes this as “filling in the corners,” and anyone who has eaten a Thanksgiving meal understands the meaning.CTEK Battery Chargers 56-674

The Absorption stage “fills in the corners” of the battery. Once the CTEK detects that the charging has slowed at about 80%, it begins to taper the current but keeps the voltage up, force-feeding the battery for about 10 hours until it reaches 95-99%.

The CTEK will now go back and check its work. It will test for about 3 minutes to make sure the fully charged battery isn’t bleeding any charge. If it is, there’s not much hope for your battery and you’ll need to replace it. If not, the charger moves on to the next step.

Once the analysis is done, the charger will spend anywhere from 30 minutes to 4 hours reconditioning your battery. This is good for deep cycle batteries that were previously fully or close to discharged. Reconditioning involves a quick and sustained burst of voltage to fix something called acid stratification.

Often when a battery is overcharged, it can cause the water within the battery acid to split into hydrogen and oxygen. This condenses the remaining acid, which, now heavier, settles at the bottom of the battery. This can also happen through simple gravity if the battery sits unused for long enough. Remember, though, that the more lead touching the acid, the more power you get, so the reconditioning stage sets to shake things up through a process called equalization.CTEK Battery Chargers 56-677

This basically sends enough current through the battery to cause tiny bubbles to form, stirring up the acid settled at the bottom of the battery and remixing the acid and water into an efficient solution.

Float Maintenance
After reconditioning, the voltage and the current level off to maintain a floating charge of 13.6 volts to keep your battery topped off. At this stage, your battery will fully charge to 100%. The float charge will remain active for up to 10 days.

Pulse Maintenance
Float maintenance is fine, but not for extended periods of time. If this battery is sitting in your classic and you’re storing it for the winter, you don’t want to leave it on float charge. This could cause overcharging, which can lead to the stratification problems above. It also increases the risk of boiling or drying out. Bad news.

CTEK’s solution is the pulse charge, which is healthier for your battery and doesn’t waste energy. It offers short pulses of power when the battery power drops- as needed. It will keep a battery charged at 95-99% for months.

CTEK Battery Chargers holds the patent on the only chargers to offer both float charging and pulse charging.
No, this isn’t just marketing malarkey. CTEK set out to make the most advanced battery chargers on the planet, and they succeeded. With real, hard science.

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#18 Bogi


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Публикувано 06 януари 2020 - 20:31

Аз имам 9 годишен акумулатор който си работи, купих колата с него и още не съм го сменял, и нямам информация дали е бил нов.


за тестване на акумулаторите ползвам такова: https://www.ebay.com...75.c10#viTabs_0


много точно хващам с него коя батерия е слаба защото на камиона ми са 4

мери CCA (cold cranking amps)

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Нямам ламбо Мамо, но ръката ми през джамо!

#19 Esper



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Публикувано 06 януари 2020 - 21:35

На това както му гледам размера е тотално импотентно да премери едекватно cranking amps на нещо по-различно от фенерче.

За стартов ток на двигател трябва емулация доста по-сериозна от тези тестери.
И размерът все още е от значение.

Няма и грам значение колко модерен е тъпият ламаринозавър.
Все още за ДВГ траябва много по-сериозен капацитет за да стартира отколкото тази жълта лигня може да си помисли да премери и покаже и покаже адекватно.

Товарни вилки им казват, може дори да нямат електроника и да показват аналогово (стрелка) но определено не изглеждат така.

Нищо де, трябва да се продава.
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