Using the se 4020 charger, do you connect both cables to the battery? + to red port - to black? Why do the instructions indicate the black to a metal part of the vehicles??

Question edited for clarity.
Question moved to Schumacher category.

The AI Chat GPT4 answer has been deleted.

Schumacher have a great Support system and in most cases the manuals have the wiring diagram at the back.

Battery Chargers Archive

Schumacher Electric https://www.schumacherelectric.com > categories > bat...
Buy a new battery charger from Schumacher Electric today. Whether you need a car battery charger, a solar battery charger, or something else, we can help!
...

Nope, it is 'Schumacher', not a 'Schumer'. Corrected.
Question moved from 'Health and Beauty' to a better category.

If you can spell it, you can Google it :>D

https://www.google.com/search?q=schumacher+se-40map+wiring+diagram

..

try this web site

http://www.manualslib.com/manual/523935/Schumacher-Se-2254.html Schumacher SE 2254 Owner Manual

use a voltmeter. turn on unit to a low setting, place volt meter leads on broken wires one on each. if the voltage goes positive on meter. the positive clamp goes on the wire that the positive(red) voltmeter lead is on and the same for the negative.
Good luck

Hello: Make sure key is off, open hood, on passenger side near inside of of fender you will see the positive and negative connections that go to the battery. (the battery is under the back seat on the passenger side, you might check connections to the battery for excessive corrossion) When checking for corrosion, remove cables from battery, the negative (black) first then the positive (red) Make sure key is off. If no corrosion re-connect battery. Hook up charger under the hood (black lead to black ground point and red to red positive point. then follow directions on your charger. Remember ignition key off.

Porter Cable has not offered a replacement for their poorly designed 19.2V chargers. I had the same problem and happen to like my drill and circular saw. I found a universal charger called a model number CHUN-2420. Google it--I got mine for $27 plus shipping. All you need to do to make this work is splice 3 wires.

My charger is a PC model 8624, so the instructions might vary slightly between the chargers. Remove the six screws on the bottom of your PC charger. Remove the bottom section. Remove the screw(s) that attach the circuit card to the plastic housing. Disconnect the 3 pin white charging connector from the circuit card, and cutoff the connector. Discard the circuit card and power cord. Cut the 3 conductor (red/yellow/black) cable coming out of the Chun-2420 approximately 2' from the charger. Splice these three wires to the three wires in the charger housing that connect to your battery. In my situation, Red/Red, Yellow/Yellow, White/Black. To verify, red=positive, black/white=negative, yellow=temperature sensor. Wrap the red/yellow/black cable with electrical tape where it exits the PC charger through the power cord hole. Re-attach the bottom.

I would check Mcmaster Carr online and search for part # 7178K14. This is a pair of 200 amp clamps for around $8.00. I use this business all the time. They ship really really fast. Good luck

Century Tool and Equipment. $3.99

http://www.centurytool.net/SE_2158_Schumacher_Battery_Charger_Parts_List_s/30946.htm

Two things.

HTC phones will not charge from the USB port unless you have ActiveSync on an XP or Mobile Device Manager on a Vista PC loaded.

Second, if the phone has been stored for a very long time, 1 year if initially charged, 1/2 year if not, the the battery self discharges to a point the USB port PC Sync software doesn't know the phone is connected. You must jump start a charge on the battery by either and HTC AC charger, a generic AC/USB charger will not work, or you can apply a +5 VDC voltage to the power terminal, marked + and - on the battery case, on the two outside terminals I believe. This 5VDC must be current limited for safety. The Red and Black lead inside a standard USB cable will supply current limited +5 volts at 100MA. Chop off a standard USB cable, their cheap and break out expose the Red and Black leads. While connected to the PC USB port, hold the Red lead to the + battery terminal and the Black to the (-), or other outside terminal, of about 30 seconds to a minute.

Now when you plug the phone to the PC with a good USB, the Amber light on the phone to indicate Charging, may not come on for a while, 5 minutes or so, but it will eventually. If it does not, jump the battery again for a longer period of time.

An AC charger for the 3125 are fairly inexpensive. $7 or so, on ebay with shipping. This may be the way to go. Consider getting one with a new battery. They are sold this way sometimes and sometimes for little more that the charger alone.

If your battery goes COMPLETELY dead, which it will do if phone is not turned OFF and not used for a long period of time, you will need to JUMP START it using you OEM SMT-5600 AC charger. Other AC chargers will not work for this purpose and neither will a USB port.

You can JUMP START the battery using a USB port by cutting off a USB cable to expost the red and black power USB PORT power pins 1 and 4. Remove your SMT-5600 battery and while the modified USB cable is plugged into your USB PORT, hold the BLACK wire to the negative (-) terminal and the RED wire to the positive (+) terminal for about a minute. Replace the battery in the phone and connect the phone to a USB PORT using a standard USB cable. The SMT-5600 charging light may not register for a while, but will eventually light amber to show it is charging, assuming your phone is recoginzed by your computer.

Note some mini USB cables DONOT carry the USB power leads through to the phone, only data. If you have a very thin USB cable, be suspicious the power leads are not being carried in the cable.

Since the USB PORT power is limited to 100ma it cannot hurt the battery, but will insert enough current into a totally flat batter to cause the battery to register a voltage large enough to alllow USB PORT charging, typically 3.7VDC.