Questions tagged [battery-charger]

Device used to recharge a drained or dead battery.

Filter by
Sorted by
Tagged with
3
votes
1answer
18 views

Does battery tender need to be in enclosed area?

I have a 2009 Winnebago Access motorhome that is rarely used. I had a battery tender but it stopped charging the battery. I purchased another tender & enclosed it in a small plastic storage box. ...
1
vote
0answers
26 views

Use of 12v Solar powered 2.4watt battery charge

My car is not being used on regular basis, sometimes not for weeks/months. Can I use one of those AA 12V Solar panel 2.4 watt car battery charger to keep the car battery topped up all the time. Can I ...
2
votes
1answer
33 views

12V AGM battery charging voltage

I have the following 12V car battery: Varta Silver Dynamic AGM 595901085 (12V/95Ah/850A), and the following car: Jaguar S-Type 2.7D. In the technical cars manual it says this: So in cold winter ...
0
votes
0answers
10 views

2003 Suzuki GSXR750 drains battery and won't start

I just bought a 2003 Suzuki GSXR750 and I keep having to replace the battery on it every time I start it. It will start maybe 4 times and run, then the battery is dead. Someone please help.
1
vote
1answer
40 views

Fiat 500e 2017 charger

i just owned a Fiat 500e 2017 sport package... i wanted to make sure that the charger that come with it is the real original one and not imitative, as i saw charger with different style, how i can ...
0
votes
2answers
39 views

Car battery won't hold a charge: can one estimate how much longer it will last? Or is it best to replace it?

I have a 12V 60Ah EFB battery in a 3-year old start/stop car. The battery doesn't seem to hold a charge. Is there any way to estimate / understand how much longer it can last, or if it's best to ...
0
votes
2answers
47 views

Can you charge a car/motorcycle battery with a portable power generator?

Can you charge a car battery with a portable power generator? Say you have a lithium, not petrol, generator, something like this or this, which you can charge in the electrical socket at home. If ...
1
vote
1answer
68 views

Car battery charging: a few questions on connecting negative clips to ground (which I couldn't find anywhere)

I understand that, if charging a car battery without removing it from the car, you should attach the negative crocodile clip not to the negative of the battery but to a metal part of the car; most ...
1
vote
4answers
79 views

Shall I disconnect an EFB start/stop car battery before charging it?

I have a 64Ah EFB car battery in a 2018 Volkswagen car with start/stop technology. I have an Optimate 5 charger which supports EFB and AGM start/stop batteries:https://optimate1.com/om5ss/ I would ...
1
vote
1answer
44 views

EFB (enhanced flooded battery) I left the lights on for more than a week because of Coronavirus

I have a Renault captur 2016 vehicle with start and stop capability, the battery is EFB 70Ah 720A, I couldn't start the engine with cables connected to another standard battery of another running ...
1
vote
3answers
154 views

Car battery booster/jump starter. Are they worth considering at all?

I have a Civic which I don't drive often and mostly sits in my building's underground parking. The battery has again discharged on me. While I have jumper cables and know how to use them, I have to ...
0
votes
2answers
80 views

Charge a car battery with a solar panel that only has USB outputs

I currently have a solar panel (this one), that is able to output 24W of power at peak capacity. I would like to be able to use this solar panel to trickle charge a car battery, but the panel only ...
0
votes
2answers
50 views

Why battery charger has rated amp hours

I have gotten a car battery charger as a present which is rated at 6A max and is also labeled up to 65Ah max. I'm not understanding why there is a battery capacity indicated on the charger when the ...
1
vote
1answer
46 views

How to tell what type of battery this is?

I would like to know whether it's either a lead acid wet cell, lead acid gel, or AGM battery. After reading a bit I see one method is the remove the battery and give it a shake to see if it contains ...
0
votes
2answers
77 views

Is there a way for the dealership to revive a dying battery?

Long story short, 2 years ago, my wife brought her car in for normal servicing to the dealership. They told her the battery needed to be replaced. She said she didn't want them to replace the ...
0
votes
5answers
84 views

What can cause a complete battery drain while plugged into charger?

I own an Aston Martin Vantage V8 stationed at Mallorca, which I use when on vacation. Last year, the car had a new high quality battery replacement. The car is plugged into a charger when parked in ...
1
vote
1answer
59 views

Can I charge a 12V 71Ah Car Battery with a 12V 12Ah - 48Ah Charger?

Can I charge a 12V 71Ah Car Battery with a 12V 12Ah - 48Ah Charger? When I try the charger says the battery is full, but the charge indicator on the battery says empty.
0
votes
1answer
46 views

Why is my car battery charger not powering on?

I've had my car battery charger for about six months and, just recently, it won't power on. When I connect it to the battery and the mains, the orange light comes on but there is no low humming noise ...
0
votes
3answers
49 views

How can I evaluate a used automotive manual battery charger?

How can I evaluate a charger before I buy it? I don't own any kind of amp meter or electrical test devices other than a 30 year old $15 multimeter. I'm looking to buy a used, high-amperage, manual ...
0
votes
1answer
22 views

How long should I leave a 3 amp charger on my mower battery

How long do I Charge my mower battery with 3 amp charger
4
votes
2answers
57 views

Battery only charges with parallel load - why? recoverable, or replace?

As a followup to Little/no charging but alternator and battery test good, the battery is only charging when the charger has a significant load in parallel with it (e.g. turning the key to the on ...
1
vote
1answer
122 views

Battery only charged with higher than 14.7v

My battery is 12V 8AH. 2 weeks ago tomorrow of good start engine I tried to start engine but my motorcycle was scrambling to start and I found that my battery may be damaged. Maybe it is useful to ...
9
votes
5answers
4k views

Solar Charging Car Battery through Cigarette Lighter Outlet?

My vehicle's cigarette lighter outlet is limited to 10 amps output. If charging were limited to less than 10 amps, would solar panel -> charge controller -> cigarette lighter outlet work for charging ...
1
vote
1answer
90 views

12v starter battery True amps available why volts come back so fast by running engine 5 mintues?

The OEM start battery on my new van is 70AH, 120RC. I have a 12v freezer that consumes about 3amps @ 12v. It takes the freezer about 6 hours to freeze a gallon of water. My battery is not a deep ...
-1
votes
1answer
37 views

Use of diode to charge in-house battery from motorhome solar system

I want to charge in-house battery (Fiat Ducato) from the motorhome solar system. I presume I can use a diode to do this? Can you please advise and what size diode would be necessary. Thank you.
1
vote
1answer
113 views

Frost on parts under hood of car

I have some questions. I recently woke up to a dead battery. It's been below zero lately so it's not surprising as it's not an every day driver. Yesterday when I opened the hood to check the battery ...
0
votes
0answers
131 views

2006 Corvette battery tender location

I have a 2006 Corvette (C6) that isn’t driven a whole lot and I want to hook up a better tender the most convenient way possible. Obviously I can hook it up directly to the battery terminals but I’ve ...
4
votes
3answers
2k views

Is my car battery charger not working?

My old car battery died because I leave it parked too long. I replaced with new battery and this time hooked a solar trickle charger to it to keep it from discharging. (it's parked in public space) ...
1
vote
2answers
218 views

Boat Alternator Charging 4 Batteries 70 Amp Draw 50 Amp Charge

This is the current situation, looking for some expert advice. Total amp draws with night time running lights + GPS + other accessories I am at about 70 amps. My alternator puts out max 50 AMPS ...
2
votes
1answer
472 views

Is it possible to charge a small auxiliary battery with the alternator?

I want to charge a small 22AH AGM auxiliary battery just to turn on some light signals. I would like this battery to be charged by the alternator while the car is running. The problem is: the battery ...
0
votes
2answers
770 views

My car battery keeps dying, what should I do?

Because I used to leave my car unused for extended periods of time (couple of weeks), the battery can't remain unused 3 days without dying. And using jumper cables everytime is difficult. I bought a ...
1
vote
2answers
77 views

Is it normal for car battery to drain this fast or is something causing this?

My i10 ever since i got it years ago had battery problems. If left for 4 days after a short trip, it discharged enough to not start again without jump starting. If long trip then expect 2 weeks. Is ...
2
votes
4answers
2k views

12V trickle charger reads 20V with multimeter?

I have a Silverline Trickle Charger that reads 'Output 12V DC - 500mA'. https://www.amazon.co.uk/Silverline-634004-Trickle-Charger-500/dp/B001C827ZA I heard the battery bubbling after a few minutes ...
5
votes
1answer
1k views

Drained battery; imminent explosion?

What would happens when if a car battery is drained of all its fluid and then hooked up to a 12v battery charger. It's a long story I did it to my car battery accidentally for about a minute. What ...
2
votes
1answer
60 views

Charging a motorcycle battery with no exposed leads

I am trying to charge this battery with this charger: However The connectors are as such: The battery is 6V, 4Ah The charger operates at 6v, 1A Without an obvious way to connect these im a bit ...
3
votes
1answer
177 views

Car battery disconnection for charging

I have read many discussions about this, but I have been unable to find a definitive answer. Many people say that it's fine to use a standard household (cheap/dumb) 12V 4A battery charger to charge a ...
3
votes
2answers
364 views

Smart charger putting out too much voltage?

Hello I bought a smart 2/4/6 amp smart charger to charge my marine and motorcycle battery. When I plug it in to charge it get up to 15.7 V is this going to wreck my batteries? I always thought ...
1
vote
1answer
4k views

Charging 12v car battery with 12V 2A power supply

My car battery gets dead if I don't use the car for 10 days or more. Is it possible to charge it using 12v 2A power supply of my dth set top box. ? EDIT: Just measured the voltages using DMM. Car ...
5
votes
1answer
1k views

How do I keep an idle/unused battery ready for immediate use?

I have purchased an Exide Power MF Battery 120 A/H for my home inverter. I need to use that inverter only when there is no electricity. That can happen once a month or like that. So my question is, If ...
2
votes
1answer
56 views

Electrical feed back on charger

Do chargers like the one used to charge a car battery draw power when it is still connected to the battery but not to the wall outlet? or still connected to the wall but the power is off?
5
votes
2answers
638 views

How to prepare a car for one year of storage

This is basically the opposite question to Reviving a vehicle that has been idle for a long time I'm planning to leave my 2014 Mazda 3 in undercover storage for a year, and was wondering what steps I ...
2
votes
2answers
43k views

Can I start my car while the battery is being charged?

I'm charging a flat battery with a mains charger. I'm curious if the mains charger can also be used to jump start... If it delivers enough power? The instructions make no mention of this at all, did ...
2
votes
1answer
894 views

How many miles does it take to recharge a flat battery?

Our of car has sat unused for long enough the battery was totally dead. We jumped it the other day and drove around for 30min or so, but a few days later it is too flat to start again. From this ...
4
votes
2answers
389 views

Does a Nissan Leaf necessarily have a 6.6kW capacity on-board charger if it has Quick Charge port?

Looking at a 2015 Nissan Leaf I see it has a Quick Charge port (listed as part of the Charge Package on the spec sheet). Does this mean this car also has the 6.6kW on board charger? I'm not sure if ...
6
votes
6answers
48k views

What is more cost effective: re-charging a car battery or replacing it new when it dies? [closed]

My car battery recently died and I was wondering if it is more cost effective to re-charge it or replace it with a completely brand new battery. I know car batteries are charged with the alternator ...
6
votes
3answers
120 views

Multiple Batteries Charging

I have multiple batteries off from motorcycles, and each of them has it's own charge level (12-13 Volt measured at rest). Assuming I have only one 12 Volt charger, can I charge them in parallel until ...
3
votes
4answers
625 views

How will having two batteries effect the charging system of my 2004 Honda Civic?

I want to have a 2nd battery to power a 1000w inverter (so I do not have to start the 2004 Honda Civic). How will this affect the charging system? Will both batteries be charged?
8
votes
1answer
27k views

Car battery dead for a while… now it won't charge?

So, my car battery died 4 months ago while it was unused in my garage during the summer (interior dome light left on for months). I went to jump start it this morning, ran it 20km ( 30 minutes ) to ...
5
votes
2answers
3k views

battery fully discharged, got a jump-start, but what do I do now?

My battery was fully discharged (forgot to turn off headlights for a few hours). The car wouldn't even unlock from the remote. What should I do after getting a jumpstart?
2
votes
2answers
2k views

How long should a battery take to recharge from a wall socket charger?

My battery died and I suspect the alternator. To test I need to get the car running again and so borrowed a wall socket charger. I have no idea how long I need to let the battery charge for. Would ...