Blowing 20a fuse

There maybe a fuse inside the unit, most reverse polarity is protected by a diode though. It is a sacrificial diode that blows out when hooked up wrong. If you have an external fuse and that keeps blowing, chaces are the diode is bad.

Hi,

You just need to set black & decker charger to 12V . Don't make mistake while connecting + / - leads. + lead usually come with Red color cable. You can use the AVO tester to justify the lead cable. The charging time is normally about 10 -12 hours (or just just check the status on your charger display). If your charger does not has trickle charge facility, you have to disconnect your charger after 12 hours continuous use.

Also, you can find the guidance about your charger here :

www.blackanddecker.com/power-tools/VEC1087CBD.aspx

Regards

The fuse should have blown quickly enough to prevent the battery from overheating. The accessory fuse powers quite a few things. Mostly it powers things like turn signals, speedometer, running lights and maybe a few other things. You need a schematic to tell what it powers. Do NOT put a higher rated fuse in the circuit or you'll start burning wires instead of blowing fuses. Evidently you've got a short somewhere or an overvoltage problem. To check for the latter case, you need a DVOM and a fully charged battery in your bike. Put the meter's function selector switch in the DC VOLTS, 25 volt or greater range. Connect the red meter lead to the positive post of the battery and the black meter lead to the negative post of the battery. Start the engine and bring it to a high idle. Within a minute or so you should read between 14.5 and 15.0 volts on your meter. If you read greater than 15 volts, I'd replace the regulator as it's probably overcharging your battery. If the fuse continues to blow, you'll have to trace the wires and look for a short circuit somewhere.

Good Luck
Steve

you would be measuring current
you would set the meter to maximum current setting
Then place the leads between the terminals of the fuse for each circuit. with the fuse removed.
so if you have a ten amp fuse you would expect a current either below 10Amp or at 10 amp.
maximum setting of current is in case short circuit to ground causes a huge current drain. To prevent blowing up amp meter of multimeter.
You may wish to put a fuse on the lead of the multimeter to safe guard your meter from blowing up in case you encounter a high current it can't handle.
if via the battery disconnect one lead and put a fused meter lead on the battery and the other lead on the battery cable. look for current drain while car switched off.

Disconnect the battery. Connect the green wire to the Negative terminal.Put a 20a fuse inline on the black wire and connect to Negative terminal.Put a 20a fuse inline on the red wire and connect to Positive terminal.
Put a 1a fuse on the yellow wire and connect to ignition switch - if you don't want to use the Ignition Sense feature, connect the yellow wire to Positive terminal.Re-connect the battery and test.

Yes it has a main fuse, look for the starter solenoid, follow your positive battery wire from the Battery, it will hook to this solenoid or relay, this is where the main fuse is, it should have a red cover.

1. Battery Voltage. - Key off: between 12 - 13VDC.
2. Key off Amp Draw - At the main fuse: < (less than) 1ADC
3. Key on Amp Draw - At the main fuse: Results will vary because of different loads.
*Note - DO NOT START THE BIKE WITH YOUR METER IN PLACE OF THE MAIN FUSE! Also, if you can not access the main fuse, put your positive meter lead on the red wire at the solenoid, and put your negative meter lead on the positive battery lead. This way you will be able to get your amperage readings AND let you start the bike without blowing your fuse.* Charging amperage should be at least 1 ADC
4. Break even speed - The RPM in which the charging voltage at the battery turns positive - Should be before Idle
5. Charging voltage at the battery - Between 13 - 15 VDC.
hope the above details help.thanks for using fixya.

1.The electrical schematics are in section 12 of the Haynes repair manual for cherokees 1984 through 2001 .
2. With all accessories turned off disconnect -ve battery terminal from the battery (wear your safety glasses at all times in the vicinity of the battery ) .
3. Solder 2 leads to a 12V light bulb and connect the leads as follows : 1 to the -ve battery terminal , the other to the loose -ve cable you disconnected in step 2.
4. If the bulbs glows , start removing , then replacing your fuses one at a time while noting which fuse made the bulb glow dimmer . The corresponding accessory is draining your battery .
cheers

NOTHING INTERNAL BUT YOU SHOULD PUT A 30 AMP FUSE BACK IN AS SOON AS YOU CAN TO KEEP THE 20 AMP FROM POPPING THATS THE WHOLE REASON FOR THE FUSE TO KEEP THE ELECTRONICS FROM BLOWING

2003 Excusion, V10, 2wd, Eddie Bauer

I had a hardtimefinding this informaton, hope it helps.

fuses
Fuse link
cartridge
2A Grey Grey — — —
3A Violet Violet — — —
4A Pink Pink — — —
5A Tan Tan — — —
7.5A Brown Brown — — —
10A Red Red — — —
15A Blue Blue — — —
20A Yellow Yellow Yellow Blue Blue
25A Natural Natural — — —
30A Green Green Green Pink Pink
40A — — Orange Green Green
50A — — Red Red Red
60A — — Blue — Yellow
70A — — Tan — Brown
80A — — Natural — Black
Passenger compartment fuse panel / power distribution box
The fuse panel is located below and to the left of the steering wheel by
the brake pedal. Remove the panel cover to access the fuses.
Roadside Emergencies
To remove the fuse panel cover,
turn the panel fasteners
counterclockwise.
To remove a fuse use the fuse puller
tool provided on the fuse panel
cover.

The fuses are coded as follows.
Roadside Emergencies
Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment Fuse Panel
Description
1 15A* Adjustable pedals
2 20A* Power point -floor console
3 20A* Power point – 3rd row
4 20A* Power point -instrument panel
20A* Power point -right rear quarter
6 20A* Trailer tow turn/stop relay
7 30A* High beam headlamps / Flash to pass
8 — Not used
9 20A* Heated mirrors
10A* A/C clutch
11 20A* Radio (main)
12 20A* Cigar lighter / OBD II
13 5A* Power mirrors/switches
14 15A* Daytime running lamps
10A* Driver’s seat module memory
16 15A* Rear seat controller
17 15A* Exterior lamps
18 20A* Turn lamps/Brake on-off switch (high)
19 10A* Body security module/4x4 module
— Not used
21 25A* Rear wiper motor
22 20A* Engine control
23 20A* Engine control
24 15A* Air suspension
10A* 4-Wheel Anti-Lock Brake System
(4WABS) module
26 10A* Airbags
27 15A* Ignition switch Run feed
28 10A* EATC module module/Front blower relay
coil
29 10A* Customer access
Roadside Emergencies
Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment Fuse Panel
Description
30 15A* Highbeam headlamps
31 15A* Clutch interlock switch
32 5A* Radio (start)
33 15A* Front wiper
34 10A* Brake on-off switch
35 10A* Instrument cluster
36 10A* PCM Keep-Alive
37 15A* Horn
38 20A* Trailer tow park lamps and backup lamps
39 — Not used
40 20A* Fuel pump
41 10A* Instrument cluster
42 15A* Delayed accessory
43 10A* Fog lamps
44 10A* PATS module, transceiver
45 10A* Ignition switch Run/ Start feed
46 10A* Left-hand lowbeam
47 10A* Right-hand lowbeam
48 10A* Rear wiper motor
101 30A** Trailer tow electric brake
102 30A** Door locks/Body security module
103 50A** Ignition switch
104 40A** Heated backlite
105 30A** Injector driver module
106 30A** Front wiper main
107 40A** Front blower motor
108 40A** Auxiliary blower motor
109 30A** Heated seats
110 50A** Ignition switch
111 30A** 4WD/Shift on the fly
112 30A** Left-hand power seats

Roadside Emergencies
Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment Fuse Panel
Description
113 30A** Starter motor
114 30A** Right-hand power seats
115 20A** Trailer tow battery charge
116 30A** Ignition switch
601 30A CB Door window motors
602 60A** 4-Wheel Anti-Lock Brake System
(4WABS) module
210 — Not used
211 — Not used
212 — Not used
301 — Front blower motor relay
302 — Powertrain (EEC) relay
303 — Injector driver module relay (Diesel
only)
304 — Heated backlite relay
305 — Trailer tow battery charge relay
306 — Delayed accessory relay
307 — Starter relay
* Mini Fuses ** Maxi Fuses