The normal support phase for abacus versions prior v5 has ended Dec 31st 2015.

Extended support via maintenance agreement will be continued until Dec 31st 2016.

After this date, support will only be granted in individual cases and with valid agreement.

This affects old software versions only.
Database maintenance will be continued!

Is there anything more desirable than to sit on your patio in a warm midsummer night and do your battery calculations with abacus4u?

We want to help you in that and give you the chance to experience this fantastic feeling.

Therefore, we offer a terrific discount of 40% in the first year for every subscription of our online system abacus4u ordered between June 15th and 28th, 2015.
And for the rest of this year, we apply the same discount, of course!

So for the period 2015/07/01 - 2016/12/31 you pay only 90% of a one year fee. It is thus cheaper to subscribe for 18 months now than later for one year only.

Please tag your request or order with the code word MIDSOMMAR and leave the rest to us! We love to share your happiness!

The most important aim for our abacus Battery Sizing is to simplify work for battery manufacturers and their clients, especially OEMs, and bring these together.

Therefore, battery manufacturers quite often ask: "How can we achieve to be listed in the database of your abacus​ users? How can we, as a supplier, achieve that our batteries will be calculated within the abacus? If we bear the expenses needed to be part of the abacus, will I be listed in yo ur users' versions?"

In this case, there exists a mutual dependancy, for to appear in the abacus, battery data have to be in the system; to populate the database, manufacturers like to be calculated in abacus...

This is why we recommend the following multi-step access to battery manufacturers:

1. You insert a representative part of your battery ranges into the abacus database,
   and we will advertise these data to our abacus4u online clients.
2. The price to populate the database can be calculated from your official discharge data and your wish list for the ranges to insert, but this can be drastically reduced if you do a part of this work on your own.
3. With that, everyone who likes may calculate your batteries, maybe even as a supplement to their offline calculation.
4. You are thus very well equipped, to be seen by our abacus5 clients who normally calculate with their offline version, for we will recommend you accordingly, as soon as you have at least ranges in our database.
5. With that preparation, it is possible to install your database at our abacus5 offline clients on a very short notice.
6. Once your data are available in our system, it is extremely simple, to utilize them for your own calculations, too, and very often the best ratio of price and value will probably be to license the online version abacus4u.
7. With abacus4u, you can do your own calculations as well as “donate “ temporary licenses to your clients.
8. Prices for that start at 49,-€ per month & license and 99,- per month & One-for-Ten -license (or use an annual license, pay 10 months but use one year).

We would love to go this journey together with you and will support you as best as we can in this!

 abacus4u IEEE Battery Sizing

Turn the curve: The new Abacus Curve Explorer!

Explore the data: The new Abacus Data Explorer!

 AlphaSys rack sizing. direct link: alpha.abacus4u.de (inactive!)

 Kunstmann rack sizing. direct link: kunstmann.abacus4u.de (inactive!)

 Montanaro rack sizing. direct link: montanaro.abacus4u.de (coming soon!)

#abacus4u and #abacus5 offer new savings:

Get 1% discount on database work for every 200 € PiSoftware turnaround in last two years (50% max).

This means if you bought PiSoftware products or service for 6000 € during the last two years, you gain 600 discount points for that, and these are worth a 30% discount on further database work!

Please follow us on Twitter!

abacus4u and abacus 5+ now give you a summary as well as details over all discharge data and corrective curves: the Curve Explorer!

It shows you for every battery model which curves are in the database to calculate it.

In this example, you can see that, for the selected battery model, Kt curves exist for final voltages between 1.60 VPC and 1.85 VPC and that these cover discharge times between 0.02 minutes and 600 minutes. There are also KtP curves for the same final voltages and discharge times, and you find a temperature correction curve for the range of -20 °C to +50 °C.

Vice versa, you can detect for every curve, to which battery models it will be applied.

In this example, for a specific manufacturer a specific Kt curve has been selected, and the Curve Explorer shows to which six mattery models this curve will be applied for calculation.

ABACUS launched in fifth edition...

... and is now called abacus 5 or abacus4u, depending on the question whether you decide yourself for the open company license or an individual online subscription.

Of course, the new abacus implements loads of new extensions and enhancements.

In very short time, you will learn more about this here!