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How important are Cold Cranking Amps on your battery?


So….

My first 5.0 swap was for my dad. We threw a 3-year lead/acid battery in and it was fine, even through winter and sitting outside and not being driven daily. Just used the stock size battery.

My green 00 Ranger I hit a point before the 5.0 swap where I needed a battery, the one I had was in warranty but died and as it worked out, it was a discontinued battery, so I had to find something else. What I ended up accepting was a narrower and longer than the stock battery, so I bent the flange on the battery tray closest to the radiator support as flat as I could (not easy to do in the truck, used pipe wrenches mostly). I also used a piece of old heater hose between the battery and stock clamp. It worked for a year or two before I did the engine swap. I believe a 65 series battery may have fit at that point.

The factory metal tray is spot welded in and attaches to the rad/core support and the inner fender in two places if I remember correctly.

When I did my 5.0 swap in my green 00 Ranger, I had to replace my rad/core support anyway, so I drilled out the spot welds for the factory tray and replaced it with the plastic Explorer tray. I had to do a little modification to my inner fender because of where the one bolt landed. I didn’t have a nutsert/rivnut tool at the time and had the fender off anyway so it wasn’t a big deal, but you may be able to use one of those instead of taking the fender off and doing some trimming on the end of the one support to get a nut on there. The plastic tray from the Explorer bolted in and holds a 65 series battery. It’s a tight squeeze for that battery, I ended up putting a slight bend to the mount for the ABS and shortened the bolt for the grounds to the core support slightly.

There is nothing wrong with replacing battery cables and ends. My preferred method is to use battery terminal clamps that are for either car audio or marine use rather than the cheap lead clamps. I also replace factory battery wiring with 4 gauge welding cable and use dielectric grease and/or No-Alox (electricians use it for terminating aluminum wire to prevent corrosion). Dielectric is not electrically conductive but No-Alox is electrically conductive. Use it as needed. Corrosion can even get into the wires inside the insulation. Corrosion slows the conductivity of electricity. Contrary to popular belief, electricity flows along the outside of the wire, not inside like a straw. So corrosion on the outside of a wire reduces current. I also am a fan of upgrading grounds.
 
So….

My first 5.0 swap was for my dad. We threw a 3-year lead/acid battery in and it was fine, even through winter and sitting outside and not being driven daily. Just used the stock size battery.

My green 00 Ranger I hit a point before the 5.0 swap where I needed a battery, the one I had was in warranty but died and as it worked out, it was a discontinued battery, so I had to find something else. What I ended up accepting was a narrower and longer than the stock battery, so I bent the flange on the battery tray closest to the radiator support as flat as I could (not easy to do in the truck, used pipe wrenches mostly). I also used a piece of old heater hose between the battery and stock clamp. It worked for a year or two before I did the engine swap. I believe a 65 series battery may have fit at that point.

The factory metal tray is spot welded in and attaches to the rad/core support and the inner fender in two places if I remember correctly.

When I did my 5.0 swap in my green 00 Ranger, I had to replace my rad/core support anyway, so I drilled out the spot welds for the factory tray and replaced it with the plastic Explorer tray. I had to do a little modification to my inner fender because of where the one bolt landed. I didn’t have a nutsert/rivnut tool at the time and had the fender off anyway so it wasn’t a big deal, but you may be able to use one of those instead of taking the fender off and doing some trimming on the end of the one support to get a nut on there. The plastic tray from the Explorer bolted in and holds a 65 series battery. It’s a tight squeeze for that battery, I ended up putting a slight bend to the mount for the ABS and shortened the bolt for the grounds to the core support slightly.

There is nothing wrong with replacing battery cables and ends. My preferred method is to use battery terminal clamps that are for either car audio or marine use rather than the cheap lead clamps. I also replace factory battery wiring with 4 gauge welding cable and use dielectric grease and/or No-Alox (electricians use it for terminating aluminum wire to prevent corrosion). Dielectric is not electrically conductive but No-Alox is electrically conductive. Use it as needed. Corrosion can even get into the wires inside the insulation. Corrosion slows the conductivity of electricity. Contrary to popular belief, electricity flows along the outside of the wire, not inside like a straw. So corrosion on the outside of a wire reduces current. I also am a fan of upgrading grounds.
Thank you for your reply
I thought about just bending the tray a little to take an optima yellow top battery. But then decided i wouldn't want to do that. I also thought or was wondering if i could just bolt the explorer tray to the ranger tray then just drop the battery in. Idk the 65 batteries are big batteries.

Battery Tray Modification is definitely an option in the future. But there isn't much room to work with in there. I think trying to modify it now would cause you to break something. But IDK might beat buying expensive batteries that don't even fit correctly.

How tall of a battery can you put in there? 2001 ford ranger xlt. Cause i found a battery but it is a little tall. 9.5”L x 6.9”W x 8.22”H (242.5mm x 176mm x 209mm) Group 24 equivalent The battery is about 21cm tall.
 
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You might have to use a special charger to charge the battery using your alternator witch i think really sucks. Cause then the life of your battery is linked to how well the charger works. Batteries last 11 years but how long do the chargers last huh, that is the questions. So you have to buy a very expensive battery that relies on a charger connected to your alternator. Im going to call there customer service and get the scoop on there batteries. Whats the warranty of the charger if it isn't 11 years then 11 year warranty is bogus in my opinion.
 
If the truck honestly seems strained to start with the battery you have, there's something wrong with your wiring.

As I said.. 600cca will reliably start a motor that has a whole liter of displacement more than the motor you have in your truck..

Do some digging in those cables before you spend another cent on a battery.
 
If the truck honestly seems strained to start with the battery you have, there's something wrong with your wiring.

As I said.. 600cca will reliably start a motor that has a whole liter of displacement more than the motor you have in your truck..

Do some digging in those cables before you spend another cent on a battery.
Agreed and i think it would be less expensive and less dangerous to wire up 2 AGM batteries then to buy the Lithium Battery.

I was thinking of just running 2 Braille Batteries together. They are light weight and thin enough to put 2 side by side in my battery tray. So i might upgrade the alternator to say 260amps then run 2 batteries side by side.

I was thinking of using the Braille B2015 battery. Or the Braille B2618 but that will be a tighter fit i think. Not sure if i can parallel these batteries though. It does not say you can't on there website, but doesn't say you can either so that is a question.

Is there any battery tech that prevents running a battery in parallel?

And they even have a dual alternator bracket but i wouldn't need that. But they do have one. I figure i should mention it.
 
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Thank you for your reply
I thought about just bending the tray a little to take an optima yellow top battery. But then decided i wouldn't want to do that. I also thought or was wondering if i could just bolt the explorer tray to the ranger tray then just drop the battery in. Idk the 65 batteries are big batteries.

Battery Tray Modification is definitely an option in the future. But there isn't much room to work with in there. I think trying to modify it now would cause you to break something. But IDK might beat buying expensive batteries that don't even fit correctly.

How tall of a battery can you put in there? 2001 ford ranger xlt. Cause i found a battery but it is a little tall. 9.5”L x 6.9”W x 8.22”H (242.5mm x 176mm x 209mm) Group 24 equivalent The battery is about 21cm tall.
65 series is a big battery. But, my F-150, F-350, both Bronco II’s, and my 92 Ranger (plus now my 00 green Ranger) all take 65 series batteries. My 00 blue Ranger (which will get a tray for a 65 series when it gets put back together), my boat (marine batteries), my 1950 Ferguson TO-20 farm tractor, and my Craftsman lawn/garden tractors are the only things that I have that don’t use a 65 series. Keeps things a little simpler that way and I know that I have plenty of juice available.

Bending the front lip flat is possible in the truck, but a pain because it’s a double layer. I got the bend started and used pipe wrenches to get the angle and leverage to bend it. Didn’t break anything, but it wasn’t fun and it didn’t come out flat with the bottom of the tray because of the double layer of sheet steel. Probably be easier to just cut that front lip off. The battery can’t slide enough to come off the tray that direction, especially if it’s clamped. I like the Explorer plastic tray a lot though.
 
If the truck honestly seems strained to start with the battery you have, there's something wrong with your wiring.

As I said.. 600cca will reliably start a motor that has a whole liter of displacement more than the motor you have in your truck..

Do some digging in those cables before you spend another cent on a battery.
:agree:

If you have a good battery with adequate CA (cranking amps, since it’s not winter yet here in the States) in the truck and it’s straining to start, the problem is either the starter is dying (possible), there’s a mechanical problem with the engine (doubtful since it wasn’t mentioned), or the wiring is shot (very likely on a 23-year-old truck).

The wiring is not overly difficult to do correctly. Some wiring is more involved, but battery/starter/main ground wiring is pretty simple. Kinda wish I would have shot video when I did the last couple main wiring harnesses. Anymore I usually strip the starting/charging harness out because there’s not much to it and just rebuild it. I run a new starter signal wire too when I do that.

Also, unless you’re running a plow, winch (a lot of winching that is), or a massive stereo (I’m talking over 2,000 watts RMS), the 130 amp alternator is plenty. Heck, my F-150 does plow and winch duty and I just run a stock 130 amp.
 
The truck isn't straining to start but the stater itself doesn't sound healthy with the weaker battery. I got 910CA and 720cca in there and it sounds healthier.

So what i have is fine but i would like to get closer to the factory reccomendations for the engine. I have some kicker speakers and a single din head unit, so no powerful stereo equipment but i do have a back up camera in there that i really like.

So i would not need a better alternator to charge a second battery, well thats great that will save me some money. So i just need the batteries in parallel then.

I just have to make sure that alternator is built to charge more then 1 battery. The alternator doesn't have to be stronger just made to handle more than 1 lead acid. I don't want any problems. I was going to have 2 Braille B2618 together in parallel.
 
Your alternator will charge 2 batteries with no problem. Automotive battery charging is not a high current evolution.
 
Your alternator will charge 2 batteries with no problem. Automotive battery charging is not a high current evolution.
Thank you for your reply
Your right about the alternator but i might upgrade it anyway to match my mustangs 250 or 300 amp alternator LOL Im not sure what alternator that i have in there specifically. Can't find specs on the alternators.
 
I figure if it's enough to keep my battery topped off while running the high beams and the heater/AC full blast, it's enough alternator for me. What are you planning to do with all those spare amps? Welding straight from the cigar lighter? 😉
 
I found a high output alternator that is interesting. Because it can be adjusted to charge a lithium battery. It has different voltage regulators to choose from. But the high output amperage of the alternator is to high to charge a single lithium battery. You would have to have more then 1 lithium battery. But it is pretty cool because you wouldn't need the charger or the middle man to charge the Lithium battery or some lithium batteries not all.

I was wondering if the alternator can be set to run a 12v system but then charge at higher voltage to charge a lithium battery or batteries. So can an alternator charge at 1 voltage but then run accessories at another voltage. So essentially it would be functioning as if it were 2 alternators. I would think not but figure i should ask maybe an automotive electrical guy/gal would know the answer to that question.

What i don't like is that you have to mess with the pulleys. There pulley is small on there alternator so you have to shorten your belt or increase the size of your idle pulley or pulleys. It is also kinda expensive at around 400$
I am trying to figure out whether i would need to shorten my belt or if i could just use larger idle pulleys instead. Do they make aftermarket pulleys for the explorer/mountaineer 2001? Not sure what size i would need.

So you basically have to adjust your pulley setup just for an alternator. Not sure if it is worth it. For my Mustang i didn't have to change a thing just plug and play direct replacement. Also you have to use a thick wiring kit and they charge you for it.

I saw another alternator that is a little weaker at 220amps but maybe wouldn't need all the modification to the pulleys

Anyway i wanted to post about it because i think its unique in that you can adjust the voltage on it.

 
Charging lithium batteries is a very complex thing. They need to be specific voltages and currents over a period of time and based on feedback from the individual cells themselves. There's no alternator in the world that can charge a random lithium battery, you need a battery management system in between. Some of these aftermarket car batteries must have integrated BMSs - you'd have to follow their specs to safely charge them but in all cases lithium batteries do not love to be charged with high current. This creates heat, which degrades the batteries, and in the worst case causes them to burn. Heat is one of the main limiting factors in charging lithium.
 
Charging lithium batteries is a very complex thing. They need to be specific voltages and currents over a period of time and based on feedback from the individual cells themselves. There's no alternator in the world that can charge a random lithium battery, you need a battery management system in between. Some of these aftermarket car batteries must have integrated BMSs - you'd have to follow their specs to safely charge them but in all cases lithium batteries do not love to be charged with high current. This creates heat, which degrades the batteries, and in the worst case causes them to burn. Heat is one of the main limiting factors in charging lithium.
Thanks for your reply
Your right most of the lithium batteries i have been looking at have the BMS built in. And they all have a special voltage and amperage.

But that funky alternator i found has an adjustable voltage but it doesn't have an adjustable amperage. But alot of the batteries would have to be joined together to run off the amperage of that particular alternator. Well at least the one i was looking at for the mountaineer is 250-320amps.
 
and in the worst case causes them to burn.

Burn?

That's what we did to witches back in the good old days.

Check the specifications carefully; if the battery weighs as much as a duck, it's made of wood; therefore it must be a witch.


Sorry; it's an old Monty Python thing . . .
 

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