i just bought a digital multi tester w/ battery test function for 1.5v and 9v batteries. everytime i try a working battery ( i know it is working coz im using it) it just indicates three zeros "000" what does that mean? is my tester working? if a tester is working what's a good battery and one that needs to be charged supposed to read?

test using the DCV range.

The battery tester part uses the DC volt meter with a load on the DUT [device under test].

If you still get 000, then I would say that the battery tester portion is bad, but if you get the same answer under the DCV meter, I would be looking elsewhere. Assuming, of course, that the DC V meter reads correctly.

I am a travelling salesman. I sell VCDs and CDROMs from my van (mobile unit). I wish to connect my Dell Sempron laptop to an external battery in order to display the CDs to my customers at fairs and exhibitions. Will a regular car battery be able to power my laptop for a few hours each day? Will this supplement the battery that is already in the laptop? Can I connect the external battery to the van so that it recharges when the vehicle is running?

Your best option would be to buy a Power inverter.

What this does is plugs into your Cigarette lighter and converts the power from there into a standard power outlet.

From there, you can just plug your normal power adapter into that inverter and avoid messing with extra batteries and such.

What are 3 reasons as to why replacing the regular batteries we use today with fruit batteries (actual fruit being plugged in by wires/clips) is not a good idea? I know that fruit batteries save energy, but why is it so ineffective?

it only lasts until the sugars are used up, and rotten fruit smells

this cars battery is being drained by something, i checked all the fuses, alternator, interior lights, all the major things. i can still tell it is draining the battery because of a light tester.

any ideas? thanks
yes i pulled the fuses nothing

Your battery is most likely being drained by your alternator. A bad resistor/diode on an alternator will cause it to drain slowly…usually overnight. I doubt you have another item draining power, if you did you would've probably noticed some other symptoms.

I would recommend taking the vehicle to a local auto parts store and let them run a diagnostic on the charging system. This is a completely free service and will report any dead cells in the battery, how much drain is being put on the battery, whether the diodes in the alternator are functiong properly, etc.

With 13 years of experience and 7 owning a shop I can pretty much guarantee the alternator is the culprit. If you don't feel like taking it up for a free charging system diagnostic simply disconnect the alternator while your light tester is plugged in. You should see the difference right away.

Hope this helps!

I have a Deep Cycle 24V marine battery for craking, running the boat, etc. I just bout a 2nd battery for my trolling motor. I want to be able to put a charge on that 2nd battery while I am running the motor (cruising, finding new spots, etc). How can this be done?

Thanks in advance!
So basically just run a cable from positive on batt1 to positive on batt2 and same with negative as well?

Hook them up in a parallel circuit.

Are the Prius batteries made with conventional lead plates and sulfuric acid with multiple cells rated at about 2 volts per cell?

Which model Prius? NHW10, NHW11, or NHW20?

Which battery? The 12v accessory battery is a standard conventional lead-acid battery, but it is an AGM about the size of a motorcycle battery. It is only used to power the computers and run the accessories (radio, clock, fans, etc.). Once the computers are on, they flip a relay which connects up the hybrid traction battery. The hybrid traction battery is what starts the gasoline engine through one of the electric motor-generators, and also provides power for electric propulsion.

The hybrid traction battery is NiMH (nickel-metal hydride), NOT lead-acid. They are built by Panasonic EV Energy Corp. in Japan: http://www.peve.jp/e/shouhin.html

The differences in the battery pack designs and voltages are highlighted on this page:
http://john1701a.com/prius/prius-history.htm#Generations
The author calls the NHW10 model the "Original," the NHW11 model the Classic, and the current NHW20 model the "Iconic."

You may want to read more through the Toyota training document "Hybrid03 High-Voltage battery.pdf" found at http://www.autoshop101.com/autoshop15.html#Hybrid

For the NHW11 and NHW20 Prius (the models sold internationally), the hybrid battery pack is comprised of many prismatic modules (28 or more). Each prismatic module is made up of six 1.2V individual NiMH cells, so each module is 7.2V.

Toyota is experimenting with lithium-ion LiO packs for future Prius releases, but none are commercially on the market yet…

I have a factory amplifier in my car under the seat, and it doesn't seem to give much power to the speakers (it sounds like a car stereo w/o an amp). I was wondering if there's a way to test it using a regular multi tester like you'd use for batteries or electrical outlets.

Not really. Accurately measuring the output of a car stereo can't really be done with that sort of meter. It's not a constant voltage (DC) and it's not a regular AC power supply, either, so a regular meter won't tell you anything useful. Maybe if you had a single tone CD and a oscilloscope, but that's probably not in your toolbox.

This is the 2nd time it has happened. When I have my laptop plugged in, the battery light flashes as if it were low and about to die. Then I take the battery out and a couple of days later it works just fine. Is there a problem with my battery or my computer?

Your battery is discharged and can no longer accept charges. Time to buy a replacement battery.

how do i solve this problem? i want to put a couple deep cycle batteries in truck for microwave and accessories. i dont want surges in this accessorial circuit to blow out my truck's ecm. do i have to ground theses added batteries to my truck? can i just power my inverter with the red and the black leads from these added batteries and not connect them electrically to the trucks frame? how do i make a safe accessorial circuit with auxilliary batteries that works but does not affect the truck's electrical?
the deep cycles have a separate generator to charge them.

With a totally separate charging system for the new Auxiliary batteries they do not have to be connected to the factory cranking batteries. Just run both the positive and negative from the batteries to the Aux generator and cables from the aux batteries to the inverter. But inverters require a chassis ground from the case of the inverter to ground to prevent shock hazards since you will not be using the trucks chassis as ground you will need to make sure you run a 10 gauge wire from the inverter case to the new Aux batteries.

The world of monitors is changing. The highlights:

We have tested and taken order of a new and superior wireless monitor system.
Sony has stopped making the CRT (Cathode Ray Tube) field monitors that have been used for so many years and is switching to LCD (Liquid Crystal Display) models only
We now offer a Panasonic 17-inch high definition-standard definition LCD monitor

WEVI CAM-WAVE Wireless System With Marshall LCD Monitor
This month we take delivery of a new wireless LCD monitor system. We have been using Black Box wireless links with Optex and Teletest LCD monitors. We’ve never been too happy with this combination because of frequent break-up in the signal and a lack of robustness with the monitors but we were not aware of any other system. Well, a new one is available and we’re so optimistic it is a dramatic improvement that we ordered 15 of them. We expect delivery by late January.

The new system uses a WEVI CAM-WAVE transmitter and receiver which transmits and receives both video and audio signals using wireless LAN technology the WiFi system used with computers for wireless networking. In the tests we’ve done we found this to give a more stable and consistent signal than the RF system used in Black Boxes. We had virtually no break-up while walking around with the camera and remote monitor on several occasions. By contrast, we frequently had break-up with the Black Boxes under the same conditions.

There is a delay of about half a second between the transmitted and received image but we don’t have a problem with this and nor did any of the more demanding clients we asked. The ability to also monitor sound with the same kit is a huge attraction. No more need for a separate director’s audio feed using a radio microphone from the sound mixer or camcorder.

You can get the technical features of the WEVI CAM-WAVE by visiting www.wevi.tv.

We are also changing the brand of LCD monitors we’ve been using. The monitors we’ve used until now are what’s been available and are okay. But again, they never impressed us. The 7-inch Marshall V-R70DP is a different story. It is made in the U.S. by Marshall Electronics. It is a robust piece of kit and from the tests we’ve done it has the feel of being more reliable than other portable LCD monitors. It also has a nicer picture with sharper resolution.

This increased reliability has a price. The WEVI-Marshall combination is heavier and more expensive. But these are minor inconveniences to get what we believe will be a superior and more reliable system.

The transmitter fits onto the battery mount on the rear of the camcorder which means you don’t have to Velcro or otherwise secure it to the side of the camcorder. The battery is then mounted directly onto the transmitter and that battery powers the camcorder and transmitter. This eliminates the need for a power cable.

The director has to carry the Marshall monitor with a heavier and larger CAM-WAVE receiver with two antennae and a slimline IDX Endura 7s battery. To also monitor audio, a special cable that goes into a small amplifier has to be carried. This is more to carry but we are having special bags custom made to make it comfortable to carry this larger load and again, we are convinced this is a much better system.

The jury is out and I hope my optimism is not premature. If you’d like to test this new system yourself phone Dennis or John on 020 7622 9888 and arrange to come in and do so.

Sony Now Only Makes LCD Monitors
If you go onto the Sony web site (www.sonybiz.net) and look up the PVM series of CRT monitors most widely used for as long as I can remember you will find “This model is discontinued” beside each one. To replace them Sony is now offering the LMD series of LCD (Liquid Crystal Display) monitors. There are a number of reasons for this but high among them is the fact that LCD monitors are environmentally friendlier:

the EU considers CRT monitors hazardous waste because of their high lead glass content
LCD monitors consume less than half as much power as CRT monitors
LCD monitors generate less heat and so can help reduce air conditioning costs
LCD monitors require fewer components
LCD monitors last significantly longer
LCD monitors are lighter and slimmer so cost less to store and transport

If you’re concerned about the environment, you can make a small contribution by going LCD. That sounds good to us so we are going to begin phasing out our stock of CRT monitors gradually. The pressing concern among many lighting cameramen is how LCD monitors compare to CRT monitors when it comes to the purity and quality of the colours and the sharpness of the image when you’re lighting an interview or scene.

Sony contends “the LMD range delivers superb picture quality.” We have tested one and are quite happy with the image. We think the LMD models will become the new standard in the coming year so we have ordered ten 8.4-inch models which should be with us by the end of January. The models include the LMD-9050 which can handle standard definition (SD) and high definition (HD) signals including HD-SDI.

The 9050 has been made for broadcast and professional use. It can be battery or mains powered and because it draws less power it will run longer on a given battery than a CRT monitor. It has a full range of inputs: analogue composite, Y/C, analogue component, SD SDI, HD analogue component and HD SDI.

If you’d like to see or try one of these monitors call us during the third week of January and some may have been delivered.

Panasonic 17-inch HD-SD LCD Monitor
We also now offer a Panasonic 17-inch LCD monitor that has HD and SD SDI inputs and the full range of analogue SD inputs: composite, YC and component. If you need a large monitor on location, this is an ideal solution. Unlike large CRT monitors, this one can be powered by batteries. It’s also produces an excellent image and is lighter, slimmer and easier to carry around.

Summary
The world of monitors is changing: CRT monitors are being phased out and LCD monitors are replacing them. This has significant advantages in terms of size, weight, power consumption, flexibility and versatility. Some people may still prefer the colours and image on a CRT monitor but the new LCD models do produce good reference pictures.

If you use wireless monitors a lot, you should try the new WEVI Marshall combination we will be offering later this month. Our tests indicate it is more reliable and produces a better image than other options.

Call us on 020 7622 9888 if you have any questions. Ask for Dennis or John or me (Cal).

This Month’s Question
I’m rethinking how to handle the quiz I have held previously because getting the answer has become more a test of how quickly someone can use Google rather than a challenging test of knowledge. For this month, I am going to handle it by saying if you have a suggestion about what we could do to improve our service or make it more useful to you, please e-mail it to cal@procamtv.com. If we like your suggestion best, you will win a bottle of good champagne. Read below for inspiration.

This Year’s Message
The biggest challenge we face is consistently providing reliable kits. Despite our best efforts, mistakes are still made thankfully on relatively few occasions and it drives us nuts. To address this issue, we have created a policy of “Every Step, Every Time.” It means what it says. Every time a kit is prepared a set group of steps must be followed to ensure each piece of equipment is working well and that everything needed to make that item work is included. In theory, if everyone preparing kits follows every step every time we should be able to virtually eliminate all problems. So that’s what we’re drilling into everyone at Procam. If you have a suggestion that helps improve our reliability and the quality of our service that’s what we’re especially interested in.

And if anyone would like to see an article on something in particular just send me an e-mail and I’ll see what I can do.

Until next time, happy shooting.

Cal Barton

www.procamtv.com