How Long Does It Take To Charge A Dead Car Battery? - Car Talk - Nairaland
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| How Long Does It Take To Charge A Dead Car Battery? by Nobody: 6:09pm On Aug 22, 2018 |
Gurus in the house, how long does it take to charge a dead car battery from zero to full. How long is it going to last before it goes dead? Thanks in advance Gazzuzz, autoreportng, carguideng , ur expertise is highly needed. |
| Re: How Long Does It Take To Charge A Dead Car Battery? by CarGuideNG: 7:13pm On Aug 22, 2018 |
Gazzuzz |
| Re: How Long Does It Take To Charge A Dead Car Battery? by mayor2013: 7:24pm On Aug 22, 2018 |
lofty900: This would be dependent on so many factors such as battery condition, type of battery, genuine or chinko battery  . Lastly, how much of current is used from your battery charger to charge the battery. Also environmental factor (temperature) would be a contributory factor |
| Re: How Long Does It Take To Charge A Dead Car Battery? by GAZZUZZ(m): 7:27pm On Aug 22, 2018 |
lofty900: provide the following exact values. 1. Battery capacity. 2. Charging current 3. Circuit Load |
| Re: How Long Does It Take To Charge A Dead Car Battery? by DelTel(m): 7:56pm On Aug 22, 2018 |
It actually depends on the meaning of "dead" battery. While conceding that batteries are not ever "completely dead" doesn't mean they are rechargeable. To answer your question directly: the more discharged a battery is, the longer it will take to recharge it. Batteries usually take several hours to recharge; if the battery is severely discharged then it may take up to 12 hours or more to recharge. Dry Charge battery requires some maintenance to remain good and ready for starting vehicles, ensuring low electrolyte - generally called water - loss leading to a long service life. Reason 'battery chargers' were available at every corner shops in major naija towns and cities. While Sealed Maintenance Free (SMF) requires no maintenance as the water loss has been reduced and charge retention improved on; more amount of water is used thereby eliminating the need to top-up/add more water during the lifetime of the battery. Finally, (with the little I know) it's going to be a pyrrhic victory if a "dead" battery ever gets back to life. 1 Like |
| Re: How Long Does It Take To Charge A Dead Car Battery? by Nobody: 8:04pm On Aug 22, 2018 |
DelTel:thanks |
| Re: How Long Does It Take To Charge A Dead Car Battery? by TRYGO(m): 7:15pm On Aug 23, 2018 |
It all depends on what battery type. I'm assuming it might be a lead acid battery chemistry (12V). Charging it from 0V(0%) to fully charged (80-100%), is dependent on the battery's capacity(45 or 100Ah, for instance); output current t from the charger being used to recharge the batteries, a d resistances of the charger wires(and that if the battery). For instance, a 45Ah discharged battery, being recharged with a 2A output charger, would take ~23hrs(a day). Assuming a 5-10% factored into this, to take care of heat losses due to internal resistances from the battery itself, and resistances also from the charger wires, means it could take more than 24hours. The more the charger current, the faster the battery gets recharged. But this shortens battery's lifespan. Regards Joseph DW Nig Ltd www.dxta.net.ng |
| Re: How Long Does It Take To Charge A Dead Car Battery? by Iruobean(m): 7:03am On Aug 24, 2018 |
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| Re: How Long Does It Take To Charge A Dead Car Battery? by tellwisdom: 7:04am On Aug 24, 2018 |
Every 15 days |
| Re: How Long Does It Take To Charge A Dead Car Battery? by YorubaEmir: 7:13am On Aug 24, 2018 |
How long depends on the capacity of the battery and the current rating of the charger. A 100AH battery will require a 20 Amps charger to charge in 5 hours. (100/20=5) |
| Re: How Long Does It Take To Charge A Dead Car Battery? by pointstores(m): 7:24am On Aug 24, 2018 |
Simple calculation just divide the battery capacity ah by chargeing capacity amp imagine ur battery is 75 ah and charger 10amp 75รท10=7.5hour to charge if is maintenance free battery just add distilled water with solution of Epsom salt For ur affordable solar solution call me 2 Likes |
| Re: How Long Does It Take To Charge A Dead Car Battery? by Alejoc(m): 7:37am On Aug 24, 2018 |
I sell quality Mobile Power Solution that can power your TV and Decoder for about 5hours and Laptop for between 10-24hours, charge phones etc |
| Re: How Long Does It Take To Charge A Dead Car Battery? by NwaliE01: 7:40am On Aug 24, 2018 |
GAZZUZZ: Very correct. We can calculate it. Using ohms law ( V=IRT). You can estimate the required time. Check on the battery to know it's voltage or Use multimeter to measure Resistace, voltage and current. Then Make T ie time the subject formulae and get the estimated time. |
| Re: How Long Does It Take To Charge A Dead Car Battery? by homeboy205: 8:28am On Aug 24, 2018 |
lofty900: GO AND BUY A NEW BATTERY |
| Re: How Long Does It Take To Charge A Dead Car Battery? by Dottore: 8:45am On Aug 24, 2018 |
Alejoc:Details, pictures and price pls |
| Re: How Long Does It Take To Charge A Dead Car Battery? by depremore: 10:13am On Aug 24, 2018 |
for 12v 75 amp car battery charging it when its completely down, at most 4 hours.base on experience |
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