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Video File: Battery tester as slim as a plastic sheet

Viva Developments S.L. (Vivainnova) : 10 April, 2013  (New Product)
By optimising the battery tester for a specific family of batteries, Vivainnova has been able to strip it down to an ultra-thin device, aimed not at the professional market, but at the end user. SlimTester can be carried in the glove compartment with very little wasted space.
Video File: Battery tester as slim as a plastic sheet

One of the most common causes of car breakdowns is a flat or fauilty battery. The key to avoid a breakdown is good and regular maintenance. Many can be fixed at the roadside, but most can be avoided with the correct preventive care.

Battery testing makes it possible It to determine when to change the battery before it is completely useless, or to determine if the problem comes from the alternator. It improves security and saves tow track cost and hassles. In boating, making sure the battery works properly before leaving the dock avoids dangerous situations devloping. In rural areas where electrical grids don’t reach, homes usually use small solar panels off-grid plants where batteries are key parts. A SlimTester could be very useful device for the correct maintenance of these critical home systems.

There exist a wide range of methods to measure the charge remaining in a battery.

The use of a specific method depends on the nature of the battery to be tested, the accuracy aimed for and the level of electronic complexity that can be used.

Vivainnova has already studied the different methods. We acquired and studied different "Battery Testers" (for garage use) in order to learn how they measured the charge.

In general, battery testers are more complex because they are designed to work with a broad range of batteries, different capacities, and supply much more information (CCA,...) which is important for mechanic proffesionals, but completely useless for the end user. Moreover, most of these testers use complex displays, which need specific controllers and electronics.

In the case of Slimtester, the design
is extremely simple, optimised for a
specific battery family, brand and
model, no extra information will be
displayed and the display can be
as simple as possible.




Despite the high complexity of battery testers (for garage use), the method of measure of the charge is simple, though it has its limitations. But it is enough for the end user too. Futhermore, the low complexity of this method together with the advantages of an optimised design for a specific battery family will help us to keep the final price of the product as low as possible.

SlimTester is a new worldwide product: It is a tester for most of the batteries mounted in cars, bikes, boats, trucks, etc. Built with state-of-the-art technology on a flexible plastic foil, it is easy to use and very low cost. The device allows battery owners to check their battery level, without having to resort to experts, or buying devices designed for professionals.

It includes a flexible and clearly visible electrochromic display with the same accuracy as a battery tester worth hundreds of pounds.

Printed and organic electronics is a novel technique for designing and manufacturing electronic devices. Making use of graphic techniques, functional inks (nanoparticles based inks) are deposited on flexible materials such as plastic, paper or tissue.

The technology developed by Vivainnova allows the soldering of electronic components on a plastic sheet joining the advantages of both technologies: printing on one hand (roll-to-roll, flexible, flatness), and soldering high performance conventional components (microprocessors, diodes) on the other hand. 

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