They are probably right and most new cars will be fitted with one and the battery should last 3 to 5 years. If you have an older car things are not that simple. If your older car was fitted with a “hybrid” or plain lead acid battery originally, you will find that a silver calcium battery will probably not give you the life expected from it.

Today my expensive silver calcium battery gave up the ghost completely at least six months before its time after about two weeks of nursing and nightly additional charging.

Being a techie I did not sit idle during the two weeks and did a bit of extra research about car batteries. Most people that have dealt with car batteries know that your car’s lead acid battery is not really 12 volt but 12.6 volt and you need about 14.2 to 14.4 volt to properly charge it. If you use too low a voltage to charge the battery it will never get a full charge and too high a voltage will cause the battery to gas and lose electrolyte (water). A too low charge will also cause something called acid stratification as well as sulphation in the battery causing it to fail sooner than expected.

Unlike normal lead acid batteries, silver calcium batteries need 14.8 volt to properly charge. This means if your car wasn’t fitted originally with one its charging system will never fully charge a silver calcium battery because the charging system is set to 14.4 volt not 14.8 volt. Guess what happens? Yes your’e right, the silver calcium battery dies a premature death due to sulphation and acid stratification.

Battery Centre will happily sell you an expensive silver calcium battery and even tell you it is not really a problem because the battery will simply run in your car with a slightly lower charge. (http://www.batterycentre.co.za/SilverCalciumBattery.htm) They happily neglect to tell you that sulphation and acid stratification is a problem when you operate a battery continuously in a state of low charge. To be fair it does get a mention elsewhere on their site but not where they are punting the silver calcium batteries.

Dodgy marketing practices on their website is probably par for the course but Battery Centre’s staff really should think long and hard about dismissing a customer as ignorant when he tells them he doesn’t want a silver calcium battery because it is not the correct battery for his car. Anyway the proper battery was R200 cheaper at Midas accross the road.

Read all you ever wanted to know about batteries at http://www.batteryuniversity.com

Kampala

The first installations I did was in East Africa, Dar es Salaam, Nairobi and Kampala. My first trip was kind of hectic, the logistics was screwed up totally and we had a lot to learn.

Our first mistake was thinking that renting a car and self driving is a good idea. The roads in these cities are atrocious, and the drivers worse. And the irony is that for the same money you can get a full time driver with a car of the same quality. Anyway on this first trip I was driving around in Dar es Salaam and Nairobi dodging potholes and Kamikazes in cars.

We assumed that TV and radio stations would be good at technology and decided to install our computers at the broadcasters premises. I’m sure you know about assumptions and what they do to you and me. Well to say the least these guys may know something about broadcasting but there was very little understanding of computers, the systems we installed seemed like black magic and mentioning the word linux caused blank looks from all concerned.

The other mistake was thinking that communications systems are similar to that in South Africa and that because we only need to upload a few kilobytes a day to the server back home that dial up internet will be OK. It is up to the point you want to do maintenance and have to dial into the system from South Africa.

Dar es Salaam is actually quite a nice city especially the older part of town where I found some very nice places to eat. Unfortunately DTV where I had to install the computer were a bit surprised, they expected me much later.

Street in front of DTV - Dar es Salaam

The computer installation was quite simple except that it was mostly a hurry up and wait situation and I did not get to the roof, DTV had an antenna that worked well.

Next Stop Nairobi: And I find out the computers are stuck in customs with no hope of getting them out in the next two days. This caused some hectic rebooking of flights causing me to catch the last flight out of Nairobi to Entebi and booking into the Kampala Sheraton at about 1 am.

The next day I meet up with Alex from TV Africa who was quite helpful and surprisingly he had an ISP lined up in the same building as TVA, we got a full internet connection with public IP address from them. TVA had quite a weird array of antennas on their balcony all pointing at a nearby hill with a massive transmission mast on it. There was also quite a nice view of Uganda’s parliament.

Kampala Antennas

The Kampala installation went quite smoothly with only one snag. The only flight I could get back to Nairobi was the very early 5 am flight. This meant leaving Kampala at 2 am to get to the airport in time. This meant about 5 hours sleep in 48 hours, which is no fun at all. I also had one of the most bizarre moments at Entebbe airport. Going through emigration the guy checking passports asks me “Are you a businessman?”, I answer “Yes” and he asks “When are you going to the moon?” My half asleep brain really struggled with this line of interrogation until I realised he was referring to Mark Shuttleworth’s space trip. The guy was just being friendly.

Fairview Hotel Garden

Back in Nairobi I was actually quite happy to hear that the computers haven’t cleared customs yet. I had time to book into the lovely, very colonial Fairview Hotel and go to bed. The only damper on the proceedings were the gunshots going of just after I checked in and the hotel staff all saying “Gunshots Sir? No we didn’t hear any shots”. OF course the next morning when I walk out the front gate I find that the Israeli embassy is opposite the hotel. Half the Kenyan army were standing around looking menacing. With no one saying anything I assumed someone tried to attack the embassy the previous day and probably failed miserably. The Kenian army then showed up with a token presence to look as if they cared. Anyway there were no other incidents during the two days I was there.

Nairobi

I go to GTV who were just down the road to do the installation, again the radio and TV part is well sorted at the TV station but computers are a black art. An additional complication is that they don’t have any means of dialing out directly except for their fax line which, of course, they don’t want to give up. I manage to convince them eventually that the computer will actually dial four o’clock in the morning so it won’t interfere with their fax line. In the process I found out that 4 hour power failures are quite normal in Kenya. (At that time power failures did not happen in South Africa, of course it is very different now). Luckily, because they broadcast from the top of the building GTV had a decent generator set to keep them going, I guess they had big diesel tanks.

We were lucky to be able to swop flights easily when we could not get the computers out of customs in Kenya. If not it, I probably would have wasted a great deal of time and would have needed to fly there again. I was really happy to be back in South Africa after this very hectic trip.

To my surprise I found lots of info on past events but very little about upcoming events and no Boekehuis website. Why the surprise? Well “Die Boekehuis” is a very successful bookshop specialising in South African and World Literature. In 2006 they got listed by the International Booksellers Federation’s list of 50 unique bookshops in the world. Everyone in Johannesburg that I know, who has a real interest in books knows about them so they are successful.

I visited “Die Boekehuis” last week and asked: “Why don’t you have a web presence?” The answer was simple: “We don’t really have the time to properly maintain it.” They did however offer to put me on the announcement e-mail list for “Saturday Voices”. You can ask nicely for the same by mailing boekehuis@boekehuis.co.za.

This made me think and ask the question: “Does a small, maybe niche business really need a presence on the world wide web to be successful?” Taking “Die Boekehuis” and my own small buisiness as examples, no, not really. I was also simply too busy to maintain anything but a single homepage for my business. My work came via “word of mouth” advertising from mostly happy customers. “Word of mouth” seems to work even better for “Die Boekehuis”.

When I started out as a small consulting business everyone told me, I must get onto the web. Being someone that actually sells and maintains computer systems I believed them. As I said above all this turned out to be wrong. In fact in 8 years I got one serious enquiry via the website, unfortunately the person was in the USA so I couldn’t help him.

No you don’t need the web to sell 4000 year old technology. It seems that you don’t even need the web to sell brand new technology.

Amazon.com probably disagrees.