what amps should a well charged battery read
a3f3f3842a99b520c007c5396cc1f30e
Using a car battery charger How to charge a battery. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on.
468f2cff79bfeaadfdb1fab09ee55063
Using a car battery charger It uses mains current to replace the battery's lost. through positive and negative leads that clip to the corresponding battery posts. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on. basic charger usually charges at around 2 amps-and so needs 24 hours to deliver the 48 amps needed to fully charge a flat, 48 amp hour battery. But there is a wide range of chargers with different charge rates on the market-from 2 to 10 amps. The higher the charge output, the faster a flat battery is recharged.
2012f0c596e3f6970c533317645a9bab
- This means that the charger has the correct output voltage (24 volt, 36 volt, 48 volt, etc). Also, the output Ampere Hour rating on the charger is closely matched (within 10%) of the AH rating of the battery. 2. Be sure the charger cables are not damaged or heat worn.
e6baf23861d928cd72c2e740133b36c1
Frequently Asked Questions Allow each battery in the system to stand on open-circuit for about one hour. Measure the voltage of each battery. If the battery voltage spread exceeds .15 volts for a 6-volt battery, or .22 volts for a 12-volt battery a problem is indicated. Battery voltage alone does not confirm a problem.he 100-hour rate is just an index that is used in the battery industry to compare batteries of different types and sizes. The 100-hour rate is the amount of Ahs the battery will deliver during a 100-hour discharge.
5cce6896ca33aceac964df41d50451ac
Lead Acid Battery Charging Basics and Chargers The typical charging voltage is between 2.15 volts per cell (12.9 volts for a 6 cell battery) and 2.35 volts per cell (14.1 volts for a 6 cell battery). These voltages are appropriate to apply to a fully charged battery without overcharging or damage.
3bb6e236ea36c231e2fdc64536ace309
How to Check the Voltage of a Car Battery Electrolyte gravity voltage test. This is the method used for non-sealed lead acid batteries. With this method, a hydrometer measures battery voltage. A specific gravity of 1.269 means that the battery is fully charged. A reading of 1.229 indicates a 75% charge, 1.194 is a 50% charge, and 1.159 is 25% charged. 1.124 means you have a dead battery.
28781f1da79402cc9cdb2b143943b64b
Deep Cycle Battery Frequently Asked Questions Amp-Hour Capacity All deep cycle batteries are rated in amp-hours. An amp-hour is one amp for one hour, or 10 amps for 1/10 of an hour and so forth. It is amps x hours. If you have something that pulls 20 amps, and you use it for 20 minutes, then the amp-hours used would be 20 (amps) x .333 (hours), or 6.67 AH.ndustrial deep cycle batteries Sometimes called fork lift, traction or stationary batteries, are used where power is needed over a longer period of time, and are designed to be deep cycled, or discharged down as low as 20% of full charge (80% DOD, or Depth of Discharge).
829636460bb0b0eac823e178bc6fe652
Got Juice? How big a charger do you need? A good rule of thumb is to select one that is rated at 10-15 percent of a battery's (or battery bank's) amp-hour rating. For example, a 100-amp-hour battery would require a 10- to 15-amp charger. An undersized charger won't last long and may not be able to fully charge the batteries.
0f76cafeaca04cb9905f1c1f030ee465
How to Check AA/AAA Alkaline Battery Using a Voltmeter The proper voltage for AA/AAA NiCd/NiMh rechargeable battery is 1.25 Volts. To test the battery, turn on your voltmeter, put the voltmeter on DCV and make sure that it is far above the battery voltage, on most voltmeters there is a setting 20 in the DCV area, so switch your voltmeter to that setting.
1ce63a931ab7607654105c465b66c78b
When should I replace the car battery according to its CCA value? Discover why a good CCA reading does not always guarantee a good battery. Ever since Cadillac invented the starter motor in 1912, car mechanics explored ways to measure cold cranking amps. CCA measurements assure that the battery has sufficient power to crank the engine, especially when cold. A starter battery with low resistance promises reasonably good cranking ability, and a CCA reading of 400 to 500A is sufficient for most starter batteries. According to SAE J537, a CCA reading of 500A delivers 500A at -18C (0F) for 30 seconds without dropping below 7.2 volts. [ BU-904 How to Measure Capacity ].
ccffae347e991f74f3f61b6fcc648000
How to Check AA/AAA Alkaline Battery Using a Voltmeter Notice the voltage reading on the voltmeter. If the reading is more than 1.3V for alkaline battery (not rechargeable battery) then the battery still has some juice left in it, don't throw it away. Otherwise, properly discard of the battery. Tip : do not use old and new batteries in the same device at the same time.
e83629d7b7463a575372e6dba65b09d2
How to Pick the Right Battery Charger Another example, a Marine Deep Cycle Battery may be rated at 100 amp hours, so it would take a 10 amp charger about 11 hours to recharge a dead battery to near 100% full charge, from a completely discharged condition.
4899c920321d1db45fe16694d24cf31e
Purchasing a Pop Up Camper Battery The amp hour rating is basically, how many amps the battery can deliver for how many hours before the battery is discharged. Amps times hours. In other words a battery that can deliver 5 amps for 20 hours before it is discharged would have a 100 amp hour rating 5 Amps X 20 Hours = 100Amp Hours. This same battery can deliver 20 amps for 5 hours 20 Amps X 5 Hours = 100 Amp Hours.
a880a78efad83cf5d795b7ce223aa69d
- For example, if a deep cycle battery's capacity is rated at 100 ampere hours (AH) at the 20 hour (C/20) rate, it will produce approximately 83 AH at the eight hour (C/8) rate, 63 A in two hours (C/2), and 55 AH in one hour (C/1). This is due to the Peukert Effect.or example, if 50 amp hours has been consumed from a 100 amp hour battery, then you do not want to recharge it at rate any greater than 25 amps in one hour. At a 25 amp charging rate, it should take approximately two hours to get to a 80% State-of-Charge.
2ef58865f5682cdbdd8ab31c79a07fd6
Battery Ratings 1 An amp-hour battery rating is only an approximation of the battery’s charge capacity, and should be trusted only at the current level or time specified by the manufacturer. 2  Such a rating cannot be extrapolated for very high currents or very long times with any accuracy.
47c4d81fd71de1ece180bc733656388a
- Confidence votes 14.8K. Read the label to find out how many ampere-hours worth of charge the battery can store. If it says 60 ampere-hours then, if it is in good condition, it should be able to deliver a current of near to 60 amps for 1 hour or 30 amps for 2 hours or 1 amp for 60 hours, etc.
c036a1f550696751f0ec4ea6de0bb2bf
Using a car battery charger How to charge a battery. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on. basic charger usually charges at around 2 amps-and so needs 24 hours to deliver the 48 amps needed to fully charge a flat, 48 amp hour battery.
606e60d25a905d296ad8d486bfec5771
- The amp meter shows how much current the battery charger is outputting to the battery. When you turn on the charger, it outputs a high amount of current (electrical power). For example, if you select the 12-amp rate to charge the battery, the charger needle will be closer to the 12 on the right side. As the battery charges, the needle will drop to approximately half of the selected amperage rate indicating the battery is fully charged (For example: 6-amps).
f2a47997544a48633f96bb379acb929d
- TESTING the ALTERNATOR, is it good or bad? To charge the battery, the alternator voltage output has to exceed a minimum charging voltage. This minimum charging voltage is 13.8 volts dc across the battery terminals, or at the output of the alternator. A single lead-acid cell starts to charge at anything over 2.25 volts. Since a 12 volt battery has six cells, any 12 volt lead-acid battery needs at least 13.8 volts to start to charge.
5fbe358e969c64a8ca44d3b317c551c1
- 12 volts nominal.   A 12 volt car lead-acid battery will measure about 12.2 at full charge and no load. Car charging systems usually keep the voltage around 14 when the car … is running, though it might drop down if accessories are in use (lights, heater fan, wipers). 14 people found this useful.
b5580f932033a470b1e3dcb952a9072e
- To charge the battery, the alternator voltage output has to exceed a minimum charging voltage. This minimum charging voltage is 13.8 volts dc across the battery terminals, or at the output of the alternator. A single lead-acid cell starts to charge at anything over 2.25 volts. Since a 12 volt battery has six cells, any 12 volt lead-acid battery needs at least 13.8 volts to start to charge. This voltage will be enough to fully charge or maintain the battery on a trickle charge, but charging time will be very long at 13.8 volts. To fully charge in reasonable times, alternator output must be 14.2 V to 14.5 V as measured right across the battery posts.
5fef881aef3910d287e94ef59c1a7e09
- Manufacturers frequently specify the rated capacity of their batteries in ampere-hours at a specific discharge rate. For example, this means that a lead-acid battery rated for 200 Ah (for a 10-hour rate) will deliver 20 amperes of current for 10 hours under standard temperature conditions (25C or 77F).or example, this means that a lead-acid battery rated for 200 Ah (for a 10-hour rate) will deliver 20 amperes of current for 10 hours under standard temperature conditions (25C or 77F).
2209d9e014287fc922d3b07689b1b55a
- The most common battery rating is the AMP-HOUR RATING. This is a unit of measurement for battery capacity, obtained by multiplying a current flow in amperes by the time in hours of discharge. (Example: A battery which delivers 5 amperes for 20 hours delivers 5 amperes times 20 hours, or 100 ampere-hours.).
aa4ad73a818c2022f1a9c1be7f3aaecd
- The higher the amp setting, the faster your battery will charge. For smaller batteries like lawn/tractors and motorcycles, we suggest a 2-amp charge rate, as higher charge rates may create a dangerous condition. Check your battery specifications for the charge rate.
832fb39af1492391439a3271fd9a27c1
- To charge the battery, the alternator voltage output has to exceed a minimum charging voltage. This minimum charging voltage is 13.8 volts dc across the battery terminals, or at the output of the alternator. A single lead-acid cell starts to charge at anything over 2.25 volts. Since a 12 volt battery has six cells, any 12 volt lead-acid battery needs at least 13.8 volts to start to charge. This voltage will be enough to fully charge or maintain the battery on a trickle charge, but charging time will be very long at 13.8 volts.
6ab623b75540259d66bf450cc3411009
- When you hear all this stuff about how you should slow charge a deep cycle battery, remember the manufacturers considers 10% of the battery capacity a SLOW charge. So, a 100 Ah battery would be charged at 10 amps.The two amp setting is for your lawn mower size batteries, not a TM battery.s mentioned above, to fully charge a deep cycle battery, it requires being over charged by 6%, Your standard hot box as I call them automatic chargers will not do this. Most of them will actually cut off before it's reaches 100% much less over charge it the necessary 6%.