Sean, from my email archives: Jesse, being not able to locate adequate high power resistors here in a standard electronic shop, I looked for another way to burn test the batteries. I use 24 volt halogen bulbs, similar in design to the bulbs used in the cave lights, but with 150 and 250 watts. On a piece of stainless steel there are three sockets in parallel wiring. According to the test situation I use either a single 250 watt, or one 250 watt and one 150 watt , or three 150 watt bulbs. I can plug in two multimeters to monitor the amperage and voltage. There is a lot of heat, so it is necessary to have the stainless steel as a shield, and nothing inflamable should be close. 250 watt is close to the standard Mako motor, 400 watt matches the DV100. To check the leftover burn time on the battery after the dive, I use 450 watt to care of a partial recovery of the battery due to the time lag between the dive and the test( only a few minutes burntime with the leftover capacity anyway), to get a realistic number. Under load with 400 watt the battery starts with 24 volt, it takes approx. 45 to 50 minutes to drop to 23 volt, another 25 to 30 minutes to get to 22 volt, another 10 minutes to get to 21 volts, and only 4 minutes to drop from 21 to 20 volts, which is the end of the useful discharge. Then approx. one minute to drop below 19 volts. This setup works also for testing leadacid and nicad batteries for cave lights by using 12 volt 50 watt bulbs. ---------------------------------- Maybe someone can give me a hint what works best to fasten a tekna knive under the goodman handle. So far I have made a thread into the handle to get the screw in. The knive could still rotate around the screw, at first I used tape to fix it, but did not like it. Then I used aquaseal to fix it into position. That looks good, but I am not sure about the durability. Any ideas? Regards, Reinhard Jesse Armantrout wrote: >>Jody Everett had asked for this info, and it may be of use to others...these are both originally from John Rose, I think: Here is a copy of an old post from Casey with information about ordering the resistors used for burn testing........... snip<< --- Freeattic list subscriptions/removals should be sent to --- ken@co*.ci*.uf*.ed*. Sender: Sean M. Cary Date: 7/4/99 12:50 PM >Does anyone have a schematic for a load checker? I thougt there was one >on Cobbers page...but was mistaken. I need to load check the battery of >my scooter. > >Thanks, > >Sean Cary > ------------------------------------------------------------------- Learn About Trimix at http://www.cisatlantic.com/trimix/trimix.html -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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