Reversed the polarity of a battery
10-22-2008, 05:15 PM
#17
Three Wheelin'
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I did the same thing. Doh.
Luckily only damage was a blown ABS fuse (and about 5 hours chasing/troubleshooting because I checked the wrong fuse).
Tried to drain the battery to nil and reverse but it didn't work. New battery.
Luckily only damage was a blown ABS fuse (and about 5 hours chasing/troubleshooting because I checked the wrong fuse).
Tried to drain the battery to nil and reverse but it didn't work. New battery.
10-22-2008, 06:21 PM
#18
Originally Posted by wikipedia
Some chargers use pulse technology in which a pulse is fed to the battery. This DC pulse has a strictly controlled rise time, pulse width, pulse repetition rate (frequency) and amplitude. This technology is said to work with any size, voltage, capacity or chemistry of batteries, including automotive and valve-regulated batteries.[2][3] With pulse charging, high instantaneous voltages can be applied without overheating the battery. In a Lead-acid battery, this breaks-down stubborn lead-sulfate crystals, thus greatly extending the battery service life.[4]
Several kinds of pulse charging are patented.[5][6][7] Others are open source hardware.[8]
Some chargers use pulses to check the current battery state when the charger is first connected, then use constant current charging during fast charging, then use pulse charging as a kind of trickle charging to maintain the charge.[9]
Some chargers use "negative pulse charging", also called "reflex charging" or "burp charging".[10] Such chargers use both positive and brief negative current pulses. Such chargers don't work any better than pulse chargers that only use positive pulses.[11][12]
Several kinds of pulse charging are patented.[5][6][7] Others are open source hardware.[8]
Some chargers use pulses to check the current battery state when the charger is first connected, then use constant current charging during fast charging, then use pulse charging as a kind of trickle charging to maintain the charge.[9]
Some chargers use "negative pulse charging", also called "reflex charging" or "burp charging".[10] Such chargers use both positive and brief negative current pulses. Such chargers don't work any better than pulse chargers that only use positive pulses.[11][12]
10-22-2008, 07:02 PM
#19
Rennlist Member
I watched a neighbor pull a dead battery out of his car and put a new one in and he hooked it up backwards. The wiring to the battery caught on fire and started spreading. I got concerned because my car was parked next to his flamimg car. He shut the hood and the fire went out and he opened the hood and pulled the wires and put them on correctly. He drove that car for years without repairing any wires.
10-22-2008, 08:07 PM
#20
Three Wheelin'
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10-23-2008, 01:47 AM
#22
Drifting
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For car and deep cycle batteries, as they age, corrosion forms on the plates. This is especially true if the acid levels get too low or any of the plate is above the water/acid. Once it hits the open air, the corrosion begins almost immediately. Pulse chargers help knock that corrosion off. Most Hi-Lo and other large industrial chargers are pulse chargers to help prolong the life of the batteries.
