After a few weeks, check the battery CCA with a tester. Use any high quality car battery tester (here are the top 12V battery testers in the UK) to check the CCA (the main measure of battery health) before attaching the desulfator.If your battery is fine, then you won’t notice any change – it’s just that you’re preventing future problems, and the battery will last longer. Many people in this situation have found that a desulfator has resulted in easier starts. If your battery was struggling, you may notice the difference after a few weeks. It’s made up of Lead and Sulfate ions, which had joined together as part of the battery discharge process. Lead sulfate has the chemical symbol PbSO4. That pulse breaks down the lead sulfate on the battery plates. The products on this Best Desulfator list work by sending a high-frequency pulse across your vehicle battery plates. In other words, how do they actually remove the sulfation? Whereas desulfating battery chargers only do so when you’re actually charging. using battery chargers with desulfation mode.ĭesulfators are best since they work every time you drive to remove sulfation and prevent it arising.Here are the best desulfating battery chargers in the UK.ĬTEK’s desulfation abilities are renowned, their Recond mode works very well.Īnd both companies reckon it can extend your battery lifespan as much as 2 to 3 times. There’s a reason that the 2 behemoths of car battery charging, CTEK and NOCO, have added Desulfator modes to their chargers in the last few years: it works. The high quality battery desulfators certainly do, we’ve written a whole article about it, “ Do battery conditioners work?“. The result? Your battery could last 2 to 3 times longer (here’s how long car batteries last). It will stop the sulfation from building up in the first place. If your battery is showing signs of losing power, it’s likely to be because some sulfation has developed over time.Īttaching a desulfator can remove the lead sulfate build-up and your battery’s power will improve again.Įven if your battery is new it still makes sense to get a desulfator. ![]() But it will still happen, and more will develop over time, unless you use a desulfator. If you’re regularly giving your battery a full charge, either with regular, long journeys or by using a battery charger, the accumulation of sulfate will be relatively small. That means that any time you’re not using your car and the battery is left unused for some time, lead sulfate will build up on the lead battery plates. It builds up when the battery is left in a discharged state. Here’s the ultimate guide to battery reconditioning. When the lead sulfate crystals break down, it allows more contact between the lead plates and the electrolyte – this improves the battery’s ability to store charge and give power. That’s where a desulfator comes in – its high frequency pulses are powerful enough to break down the crystals and thus remove the sulfation from the battery plates. These crystals stick to the battery plates, and a normal charging process will no longer cause the sulfate to break up. That’s what the lead-acid battery charging process involves.īut if the battery does not get fully charged, if it’s left in this discharged state, then the lead sulfate hardens, and forms into crystals. If the battery is charged often and well, then the components break up, the lead (Pb) rejoins the lead plate, and the sulfate (SO4) becomes part of the sulphuric acid again. When a battery is discharged some of the lead (Pb) in the lead plate and some of the sulfate (SO4) in the sulphuric acid join together to form lead sulfate (PbSO4). As are silver Calcium / lead calcium batteries.Ī car battery is made up of lead plates, surrounded by a solutioin called an electrolyte (a mixture of sulphuric acid and distilled water). For example, Gel and AGM type batteries, which are VRLA types, are both more resistant to it than are typical Flooded lead-acid batteries. Some battery types are more resistant to sulfation than others. It’s an inevitable chemical process, and it happens to ALL lead-acid batteries to some extent. Sulfation is the accumulation of lead sulfate on the battery plates. When you remove that sulfate, the battery starts to work more efficiently again it will store charge better and recoup some of the power that it originally had when it was new. The lead sulfate that a desulfator removes was impairing the battery’s ability to store charge and deliver power. It’s a device that attaches to your battery that removes sulfation from your battery plates.Īs a result the battery works better. Now, let’s find out a bit more about desulfators, and how they work. ![]() ![]() That’s it for our reviews of the best battery desulfators in the UK.
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