For those that get the low voltage message after battery check , heres what I did. Removed battery from bike, Ran jumpers from a running truck for 15 min. This gave enough in the battery for the gizmo to read it and do its thing. If that will not work for you the Battery your working with could be Toast. Also Autozone and Advanced charge batterys for free if you have access Hope this helps someone. Thank you for this video uploader ...pure gold !!!
I have been using multiple lipo chargers on car batteries for years. They work great in a pinch. Never been able to get even a fully depleted 850cca car battery to take close to 10a... Normally they like to charge at around 6 amps even though my charger is capable of 15amps per channel. But it works and you dont need to buy a car battery charger unless you have stuff in storage or setting for a long while.
Nice explanation, I have only to make up some leads or even just exposed wires and use clamps from jumper leads to attach to bigger terminals on car battery.(insulate other ends, or clamp on the matching terminal for safety) Too easy, thanks. I could make leads from old clamps to suit, too lazy nowadays. haha
Thanks. But my charger (ISDT Q8) initially didn't want to charge the battery when it was 6 volts. So I had to use the DC power supply mode. But when the battery is more or less charged, the Pb mode can be used.
Title is a bit off I think. It's actually not a LIPO charger but a Charger that charges a various type of batteries. The LIPO charge function is not in use for charging Pb batteries. And that is what I thought I was about to see how you did. But great video for me too. I had confirmation that what I do is what others do.
Thanks for this. I need some help with a car starting issue. How do I know when the battery is done charging? My car isn't starting so I used My B6 lipo charger to charge a Pb battery 72 Ah 12V (6 A setting at Pb battery) for two hours and the feeding current changed from 4.6 A to 0.7 A so I guessed that the battery was strong enough to test starting the car. The lamp on the battery is glowing aswell which I assume is a good sign. But it didn't work. So either I wasnt patient enough or I need to replace spark plugs.
The charger should show “End” or “Full” depending on what charger you have. The fact that it went from 4.6A to 0.7A is a good sign. Means that the charger thinks the battery is close to full. When you tried on the car, was the car cranking normally and fast? If not, it could be a bad battery that is struggling to release amps
You could easily go to a amp on that battery. A stator on a motorcycle is almost always going to be over 1 amp at 12 volts. If you set that thing for 12 volts at 1 amp it's still a good slow charge.
Strange this should come up ! I just tried on my bike battery today. It worked for me before no problem but today , failed. It just kept saying ' connection break ' Connections were fine. Only change was battery was completely empty. I was trying to charge at 0.5a . Maybe I should have tried higher amperage? Never been a problem before. These little 5a chargers are versatile as hell.
That is probably because your battery is dead. When batteries die, the internal resistance becomes infinite, so essentially the charger sees it as an open connection between the terminals. Have a look at this video where I explain it: th-cam.com/video/1MiLq7OXLQo/w-d-xo.html Unfortunatelly I don't think you can do anything to save your battery (if you do, let me know as I would like to know too!! ) Hope this helps
@@aser2429 iv not tried it since ( got a new battery ) The battery was absolutely flat so likely to be the case. May try a different charger but your explanation makes perfect sense. Thankyou so much
Hi! Yes, you should follow the exact same steps. For a 75ah you should be able to charge safely at up to 7.5A. So 7.5A or lower should be your target current. However, if I remember correctly the charger maxes out at 5A. So i. Reality you should be able to charge at the full 5A
I actually do not know for sure… of it was me, I would also use the Pb setting and choose the correct voltage at a low amperage setting. But please do your research as I am not 100% sure
I’ve tried to charge old lead acid batteries with my accucel but needed this to do it properly.. do you think I might got ruin one of this by hard charging? Resistance is 500 almost in one of 3 equal bats
@@aser2429 How do you choose the current? . I'm really no good on this. I have the Turnigy accucel, I charge mainly lipo, I can set the balance charge and allways charge at 1.0 amp. I'm building a fishing boat and thought a 12v would give it more running time , it's only a 9.6 v battery so u may need a reducer for the current, but I've charged one before on the turnigy. Is the current the amps and how do I know what to charge at for lipo batteries and lead acid? . Really really confused.
Hi @@rodgeyd6728. The current (amps) that you charge the battery depends on the pattery capacity. For lead acid, the reccomended charge rate is 0.1C (0.1 x the full battery capacity). So in my case the battery capacity is 11.2Ah (normally written on the side of the battery), so: 11.2Ah x 0.1C = 1.12A. So your charge current should be 1.12A maximum. For Lipo bateries (always use lipo balance charge program), the reccomended charge rate is 1.0C (1 x the full battery capacity). Therefore if you have a 2200mAh = 2.2Ah, then 2.2Ah x 1.0C = 2.2A. So your reccomended charge current is 2.2A If its a 9.6V battery, please only charge at 9.6 and not at 12V. You can choose your charge voltage in the same place you choose your current. Hope this helps!
Nice video, but I have one correction that I think you should make. If you want to charge your battery at 1C then you would charge it at 1.2 amps, but if you want to charge your battery at 0.1C then you would charge it at 0.12 amps. Here is the math: 0.1 c * 1.2 amps equals 0.12 amps.
Thank you for a solid explanation and video. Having my van and car battery down at the same time both are now charging at the same time with car and lipo chargers. 👍👍👍 Mine being 70ah charging at 3.5amps
Thanks for your comment! I am glad you found it helpful. 3.5A is spot on. however, if you are in a rush, you could charge a 70ah battery up to 7A and still be safe :)
If it was dead it would never charge setting the charger to 12 volts. The charger would throw a low voltage warning which sucks. I jumped my batters with a lipo battery for a few seconds until it had enough juice so that the battery tender detected some voltage and started charging. Since its only at 6 volts after sitting for 12 hours I tried to use my 4 button charger but setting it to 10 volts gives a low voltage warning so the battery has to me near the target voltage for it to work. So if I charged it to 10 volts and then set the charger to 12 volts it complains with a low voltage error so this is kind of useless for folks trying to resurrect a dead battery. I wonder if any of the other modes would work.
That is a very good point you make there @MrJoe. I am always a bit scared with jumping a battery with a lipo, as depending on the capability of the lipo the charge/diacharge rate could be massive (some LiPos can give 100A!!!). But your thinking is correct, try to connect some form of battery to “wake it up” before going into charge mode. What sometimes works (not always) is putting the charger in NiMh mode at a low voltage to try to wake the battery up for 15-30min and then swap over to Pb (although keep monitoring that battery during that time).
I have a 6v 7ah battery, trying to charge on a C150 charger, but it keeps telling me to disconnect. I put at Pb Charge at 6v and 0.7A, but it does no where. Where am I going wrong?
If you do a voltage check and a resistance check on your battery what does the charger tell you? If your battery is damaged with very high internal resistance sometimes the charger will not want to do anything. You could try charging at a lower voltage for a bit, or charge using Nimh mode for a bit until the voltage bumps up. But do monitor the battery closely during this time and do not leave unattended.
Do you get a low voltage alarm on the charger? If needed you could always charge it slowly (1 amp) at lower voltage (2-3S) to 'trick' the charger. You can then move to the correct voltage when the battery charge has risen a bit.
@@aser2429 Thanks ;) Standard for batteries is 12Ah and I thought of mine at the same time since I have problems with it - I've probably bought a faulty new one and now waiting for complaint reply.
Thanks for the video, very useful! But when I did everything, it worked for 15 minutes, and when I came to see how it was going, the charger was turned off and it was not working. And I see that is the power supply, the converter that is connected to the plug, that it is not operating. Like if there were not electric current, because even its own light to show there is current, is off.
I think your power supply might have died. You can use many power supply for these chargers as usually the acceptable voltage input is quite large. I use an old laptop power supply.
@@aser2429 yes, it is totally dead, but It worked as usually everytime I used for LiPo before. I guess something about voltage in the plug, or maybe the thing I was charging a motorbike battery, its what had killed it. I'll try again with another power supply and let's see if It works. It worked for you and, as I see, for many people even with similar chargers or power supplies... Bad luck for me.
@@aser2429 well, I bought another power supply and now I charged the battery at 0.9 A (low time charge as It says in the battery), instead of 2A (high speed charge) and it finally worked. So useful, as I dont have to buy an specific car/motorbike battery charger. Thanks for your tutorial!
For those that get the low voltage message after battery check , heres what I did. Removed battery from bike, Ran jumpers from a running truck for 15 min. This gave enough in the battery for the gizmo to read it and do its thing. If that will not work for you the Battery your working with could be Toast. Also Autozone and Advanced charge batterys for free if you have access
Hope this helps someone. Thank you for this video uploader ...pure gold !!!
Extremely helpful. I am much more confident I won't start a fire now
Great video. Was just looking at car battery chargers when I remembered I had an Accucel. Didn't even realize it did SLA's until I checked.
I have been using multiple lipo chargers on car batteries for years. They work great in a pinch. Never been able to get even a fully depleted 850cca car battery to take close to 10a... Normally they like to charge at around 6 amps even though my charger is capable of 15amps per channel. But it works and you dont need to buy a car battery charger unless you have stuff in storage or setting for a long while.
Thanks, this helped just when I needed it!
Nice tutorial. Empty car battery charging will last 6+ hours then. So find a place where tiny cooler whiling will not disturb you much.
Right on time! Thanks! Very complete and well explained!
Nice explanation, I have only to make up some leads or even just exposed wires and use clamps from jumper leads to attach to bigger terminals on car battery.(insulate other ends, or clamp on the matching terminal for safety) Too easy, thanks.
I could make leads from old clamps to suit, too lazy nowadays. haha
This is the perfect overview!! Thank you a ton! I wanna see your flying :D
Thanks. But my charger (ISDT Q8) initially didn't want to charge the battery when it was 6 volts. So I had to use the DC power supply mode. But when the battery is more or less charged, the Pb mode can be used.
Thank you very much for the advice. It's funny I have the same charger as you have :) and it didn't cross my mind to use👍
Thanks for this , very helpful clear video, appreciate it.
Title is a bit off I think. It's actually not a LIPO charger but a Charger that charges a various type of batteries. The LIPO charge function is not in use for charging Pb batteries. And that is what I thought I was about to see how you did. But great video for me too. I had confirmation that what I do is what others do.
Apologies if it misslead you. I used that title as most radio control LiPo chargers also have the same capabilities. Glad it helped though!
Thanks for this. I need some help with a car starting issue.
How do I know when the battery is done charging?
My car isn't starting so I used My B6 lipo charger to charge a Pb battery 72 Ah 12V (6 A setting at Pb battery) for two hours and the feeding current changed from 4.6 A to 0.7 A so I guessed that the battery was strong enough to test starting the car. The lamp on the battery is glowing aswell which I assume is a good sign.
But it didn't work. So either I wasnt patient enough or I need to replace spark plugs.
The charger should show “End” or “Full” depending on what charger you have. The fact that it went from 4.6A to 0.7A is a good sign. Means that the charger thinks the battery is close to full.
When you tried on the car, was the car cranking normally and fast? If not, it could be a bad battery that is struggling to release amps
Thanks im very grateful... your post help me allot... i did follow your instructions and greate results :)
I am very glad it helped! :)
Many Thanks Gabriel
You could easily go to a amp on that battery. A stator on a motorcycle is almost always going to be over 1 amp at 12 volts. If you set that thing for 12 volts at 1 amp it's still a good slow charge.
I agree! :) that is why I set it at 1.1A. It charged at lower amps because the battery was almost full and the charger backed off automatically :)
Thanks. I have a different charger (Toolkit M8) which also has the Pb option. Looks like I don't need to by another "trickle charger" :)
Hi, i tried with the toolkit m7. When i start charging, then voltage quicky goes up and completes the target voltage.
How do i do it right?
Strange this should come up ! I just tried on my bike battery today. It worked for me before no problem but today , failed. It just kept saying ' connection break '
Connections were fine. Only change was battery was completely empty. I was trying to charge at 0.5a . Maybe I should have tried higher amperage? Never been a problem before. These little 5a chargers are versatile as hell.
That is probably because your battery is dead. When batteries die, the internal resistance becomes infinite, so essentially the charger sees it as an open connection between the terminals.
Have a look at this video where I explain it:
th-cam.com/video/1MiLq7OXLQo/w-d-xo.html
Unfortunatelly I don't think you can do anything to save your battery (if you do, let me know as I would like to know too!! )
Hope this helps
@@aser2429 iv not tried it since ( got a new battery ) The battery was absolutely flat so likely to be the case. May try a different charger but your explanation makes perfect sense. Thankyou so much
Great video - thank you
Thank you i thought my charger was just for nimh and lipo now i can do lawn mower and car batterys
many thanks for a good tutorial :)
Nice one, gonna try for my bike battery
great video! helped me out so much. keep making content on electrical stuff
Thanks Ethan!! :) what sort of electrical stuff would you like to see?
thanks buddy, really helpful
you said to charge at 0.1c rate? but you use almost at 1c rate? huh?
Battery capacity is 11.2Ah (the numbers are slightly faded on the battery). Therefore 1C is 11.2A, and 0.1C is 1.12Ah. Hope this helps!
@@aser2429 ah yes the labelling of your battery was faded
I mean I wouldn't expect anyone to look at that battery and say ya 1.2ah or something sounds right but I guess without any experience maybe
How much amp should i set for a car battery?
I have a AGM 12v 75ah battery and want to charge with the same charger you have. Do i follow the same steps? Whats amps should i put on my charger?
Hi! Yes, you should follow the exact same steps. For a 75ah you should be able to charge safely at up to 7.5A. So 7.5A or lower should be your target current. However, if I remember correctly the charger maxes out at 5A. So i. Reality you should be able to charge at the full 5A
Can I do this somehow with my venom duo?
Title is inaccurate. You are charging the battery with a multi charger that specifically has a lead acid setting...
Awesome. Thanks.
what if its an AGM or gell cell?
I actually do not know for sure… of it was me, I would also use the Pb setting and choose the correct voltage at a low amperage setting. But please do your research as I am not 100% sure
I’ve tried to charge old lead acid batteries with my accucel but needed this to do it properly.. do you think I might got ruin one of this by hard charging? Resistance is 500 almost in one of 3 equal bats
Not sure... resistance is quite high... maybe you got damage from charging too quickly?
Do you have to go into settings to change it for a 12v ?
Rodgey D, you do not need to go into settings. When you are about to start charging, you can choose the current and voltage. For 12v choose: 12.0V(6P)
@@aser2429 How do you choose the current? .
I'm really no good on this.
I have the Turnigy accucel, I charge mainly lipo, I can set the balance charge and allways charge at 1.0 amp.
I'm building a fishing boat and thought a 12v would give it more running time , it's only a 9.6 v battery so u may need a reducer for the current, but I've charged one before on the turnigy.
Is the current the amps and how do I know what to charge at for lipo batteries and lead acid? .
Really really confused.
Hi @@rodgeyd6728. The current (amps) that you charge the battery depends on the pattery capacity.
For lead acid, the reccomended charge rate is 0.1C (0.1 x the full battery capacity). So in my case the battery capacity is 11.2Ah (normally written on the side of the battery), so: 11.2Ah x 0.1C = 1.12A. So your charge current should be 1.12A maximum.
For Lipo bateries (always use lipo balance charge program), the reccomended charge rate is 1.0C (1 x the full battery capacity). Therefore if you have a 2200mAh = 2.2Ah, then 2.2Ah x 1.0C = 2.2A. So your reccomended charge current is 2.2A
If its a 9.6V battery, please only charge at 9.6 and not at 12V. You can choose your charge voltage in the same place you choose your current.
Hope this helps!
Hi, I bought an ultra cell battery 12V 9AHr and i charged it with iMax Ba6 charger but i only reachs arround 13.5 volts is this normal ?
I think that sounds about right. 13.5 is roughly what it would normally see in the vehicle!
Thanks !
Nice video, but I have one correction that I think you should make. If you want to charge your battery at 1C then you would charge it at 1.2 amps, but if you want to charge your battery at 0.1C then you would charge it at 0.12 amps. Here is the math: 0.1 c * 1.2 amps equals 0.12 amps.
Not quite! The battery is an 11.2Ah (just that the first “1” is slightly rubbed off). So 0.1Cx11.2Ah=1.12A
@@aser2429Thanks for the correction! I didn't notice the "1" had rubbed off.
Thank you for a solid explanation and video.
Having my van and car battery down at the same time both are now charging at the same time with car and lipo chargers. 👍👍👍
Mine being 70ah charging at 3.5amps
Thanks for your comment! I am glad you found it helpful.
3.5A is spot on. however, if you are in a rush, you could charge a 70ah battery up to 7A and still be safe :)
just tried this today, thank you so much as i been looking for a battery charger myself, well update if it works on me thank you
lipo does it need a power transformer or no and thx to u
It does need one if you are powering it directly from the wall plug. I use one From an old laptop, that I have soldered an XT60 connector to it.
@@aser2429 k thx to u I wish you more
Thanks a lot
If that battery you had here was dead or almost dead how long would it take to charge at the rate you used to charge it here?
If it was dead it would never charge setting the charger to 12 volts. The charger would throw a low voltage warning which sucks. I jumped my batters with a lipo battery for a few seconds until it had enough juice so that the battery tender detected some voltage and started charging. Since its only at 6 volts after sitting for 12 hours I tried to use my 4 button charger but setting it to 10 volts gives a low voltage warning so the battery has to me near the target voltage for it to work. So if I charged it to 10 volts and then set the charger to 12 volts it complains with a low voltage error so this is kind of useless for folks trying to resurrect a dead battery. I wonder if any of the other modes would work.
That is a very good point you make there @MrJoe. I am always a bit scared with jumping a battery with a lipo, as depending on the capability of the lipo the charge/diacharge rate could be massive (some LiPos can give 100A!!!). But your thinking is correct, try to connect some form of battery to “wake it up” before going into charge mode.
What sometimes works (not always) is putting the charger in NiMh mode at a low voltage to try to wake the battery up for 15-30min and then swap over to Pb (although keep monitoring that battery during that time).
@DaveCue, theoretically, if you are charging at 0.1C it means it would take 10h to fully charge a battery.
It's just as effective as a 20w solar charger right? Almost?
Yes! Charging at that low amperage rate a 20W solar charger would give you about the same! :)
I have a 6v 7ah battery, trying to charge on a C150 charger, but it keeps telling me to disconnect. I put at Pb Charge at 6v and 0.7A, but it does no where. Where am I going wrong?
Turned off timer and capacity as well.. nothing! What’s the problem?
If you do a voltage check and a resistance check on your battery what does the charger tell you? If your battery is damaged with very high internal resistance sometimes the charger will not want to do anything. You could try charging at a lower voltage for a bit, or charge using Nimh mode for a bit until the voltage bumps up. But do monitor the battery closely during this time and do not leave unattended.
brilliant
Great
I couldn't charge becos of low voltage..so how?
Do you get a low voltage alarm on the charger? If needed you could always charge it slowly (1 amp) at lower voltage (2-3S) to 'trick' the charger. You can then move to the correct voltage when the battery charge has risen a bit.
connect to a v small 12v solar panel for a few days then try charging with turnigy. Works for when Turnigy low voltage warning wont charge battery.
Cheers.
Lame this charger doesn't have a float setting
thanks!!!!!!!!!
Wrong - 0.1C charge rate for this battery is 1.12A , so this could damage the battery.
Battery is 11.2Ah, therefore 1C would be 11.2A. So 0.1C is 1.12A.
@@aser2429 Of course you're right :)
@@aemic0pl in your defense the lable in the battery is almost fully rubbed off ;)
@@aser2429 Thanks ;) Standard for batteries is 12Ah and I thought of mine at the same time since I have problems with it - I've probably bought a faulty new one and now waiting for complaint reply.
Thanks for the video, very useful! But when I did everything, it worked for 15 minutes, and when I came to see how it was going, the charger was turned off and it was not working.
And I see that is the power supply, the converter that is connected to the plug, that it is not operating. Like if there were not electric current, because even its own light to show there is current, is off.
I think your power supply might have died. You can use many power supply for these chargers as usually the acceptable voltage input is quite large. I use an old laptop power supply.
@@aser2429 yes, it is totally dead, but It worked as usually everytime I used for LiPo before. I guess something about voltage in the plug, or maybe the thing I was charging a motorbike battery, its what had killed it.
I'll try again with another power supply and let's see if It works. It worked for you and, as I see, for many people even with similar chargers or power supplies... Bad luck for me.
@@senorlaverdaque6080 hopefully you get it working again! :)
@@aser2429 well, I bought another power supply and now I charged the battery at 0.9 A (low time charge as It says in the battery), instead of 2A (high speed charge) and it finally worked.
So useful, as I dont have to buy an specific car/motorbike battery charger. Thanks for your tutorial!
@@senorlaverdaque6080 thanks!! Glad it worked! :)
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