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All lead acid batteries are always charged with the caps on. What this prevents is the acid accidentally boiling up an out of the cell and doing damage to surrounding equipment. When a car battery in a vehicle is charging when the engine is turning over, the caps remain on. This procedure should be no difference when the battery is on a plug in battery charger, the caps remain on. There are vent holes in the caps which allow any built up pressures to release.
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∙ 14y ago
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Do you take the fill caps on your battery off when you charge it at the rate of 2 amps?
no way.
How do you get a 12 volt battery with a dead cell to take a charge?
Pull the tops of the battery off and pour sterilized water in he open ports. Then charge the battery as normal. If it doesn't hold the charge then you need to replace the battery.
Can a 9 volt battery charger be used to charge a 4 volt battery pack?
Sort of, but any automatic cut-off won't work. You run a real risk of overcharging the battery and damage it.
How do you check a 12 volt battery for adequate cranking capability?
A fully charged 12 volt battery with engine not running, ignition off will read 12.6 volts at 100% charge. 12.4 volts at 75% charge. 12.2 volts at 50% charge. 12.0 volts at 25% charge.
What is the minimum voultage for a car battery?
As read from the battery with a digital volt meter with engine off. 12.6 volts = 100% charge 12.4 volts = 75% charge 12.2 volts = 50% charge 12.0 volts = 25% charge
Use volt meter to check 12 volt battery charge level?
With your volt meter, touch the positive battery with the red wire and black to ground (neg, ) on the battery. With the engine off you should have a reading of anywhere from 12.2 to 12.6 volts. That is good. With the engine running at high rev's you should have a reading of any where from 14 to 14.5. When you charge the battery with a 2 amp charger it will take several days and the charge level will go up to 14.5 or so volts.
What would cause a car battery to blow off the caps and implode a hole into itself?
Most likely a faulty regulator causing a over charge
If you park your Prius for two weeks will the battery die?
Maybe! Revised and complete answer... The 270 volt traction battery won't die. The 12 volt battery won't 'die' in two weeks in normal storage with the headlight switch turned off. The headlight auto on option and the computers do take some power. In 3-4 weeks, the 12 volt battery CAN lose all power because the computers are always on (standby). Vacation times of over 4 weeks requires a trickle charge on the 12 volt battery to avoid full discharge. Somebody could also drive it 10-15 miles every three weeks to maintain charge. If the 12 volt battery DOES die because of storage, the 270 volt battery can recharge the 12 volt battery to a start the car condition with the key turned to (check engine) 'run' position for 4-5 minutes. The inverter will charge the battery enough to start the car. Remember you must "start three times to reset the system" if the 12 volt battery ever becomes discharged like this. -__-
Can you run 2 12 volt trolling motors simultaneously off a single 12 volt battery?
Yes but you will deplete the battery quickly.
Do you need to remove the battery acid caps when charging?
NO! never remove the acid caps! EVER! only if it is a battery to something like an ATV or dirt bike you would take the acids caps off and only to refill the acid. if it is a normal car battery just leave them on. if you are talking about the (+) and (-) battery TERMINAL caps then on some vehicles you have to take them off so that the charger can come in contact with the battery posts.
How many bb's can you shoot per charge on a 9.6 volt 1100 mah airsoft battery?
Here is a quick tip, mAH stands for Milliamps. however many milliamps a battery is rated, that's about how many shots you should be able to get off on a full charge.
What battery charger do you buy to charge your ford focus battery?
Any 12 volt battery charger with an automatic feature. I own a Schumacher 520A-PE and it is an excellent inexpensive charger for the homeowner. It will charge at 10 amp to recharge an auto battery in about 3-5 hours. Also has a 2 amp trickle charge to maintain a stored battery as on a lawn mower. Will shut off when done to prevent overcharging.
