sealed beam headlight amperage draw

[AH64ID]

I was hoping there was a standard for headlight bulbs.

There is, but what size bulb. They can range from 35-55W for low beams and 65 for high beams.

 

[GAmes]

What ever is in a '67 Chev. Nothing is printed on it anywhere.

 

[BigPapa]

It should be similar to what ii posted in post #2. That’s the standard headlamp like in a 1st Gen.

 

[GAmes]

I think 5 amps is pretty close. After 6 hours of being hooked up it took 3 hours of a 10 amp charger to top the batteries off. I'm bummed that one of them has to be returned but I applaud the Dakota customer service.

 

[AH64ID]

Don’t forget a 10A charger is very small for a 100A battery, so it will never charge fast.

It takes 36 hours for my 300AH AGM’s to go from 50-100% with a 55A charger.

 

[GAmes]

According to Dakota's literature it takes about 10 hours to fully charge the batteries that are delivered with about 10% charge. It's a moot point to me. I normally plug in the onboard charger (10 amps per bank) then go about my business. When I get up to go fishing the batteries are charged. When I get home, or back to the motel, I plug it in and repeat the cycle.

 

[Ozymandias]

10amp Charger is the absolut lowest possible range to charge a 100Ah Lithium battery. No more, really.
I've a 60Amp charger for my 265Ah Block.

 

[GAmes]

10amp Charger is the absolut lowest possible range to charge a 100Ah Lithium battery. No more, really.
I've a 60Amp charger for my 265Ah Block.

It's a different application than what you use yours for. The largest onboard boat chargers are 15 amps per bank (battery) and they are back ordered until at least Jan. The 10 amp per bank was readily available and is what most boats use. A 10 amp single is what the support tech sent me for troubleshooting. Speaking of the support tech, I sent him your quote "And for longevity, the Lithiums like it the most go keep them within a range from 20-80% SOC.
They dont like it to be fully charged every time you use them."

He replied "We recommend charging at 14.4v, 15V max. We recommend doing a top-up charge after every use." I'll stick with his advice.

 

[AH64ID]

Application has nothing to do with it, as the batteries don’t know how they are used. A certain size battery needs a certain size charger and for 100AH, or 300AH if they are in parallels, a 10AH charger is small.

 

[GAmes]

Two are in series (24 volt) and the other is a stand alone. Each battery is charged independently. The charger is designed for lithium batteries. I'm sure the support tech would advise me if my 10amp onboard charger isn't capable for their 100AH batteries or he wouldn't have sent me one for troubleshooting. https://dakotalithium.com/product/dakota-lithium-12v-10a-amp-lifepo4-battery-charger/

Since I bought three batteries a 36 volt charger was included. It is 8 amps. https://dakotalithium.com/product/quick-36v-8-amp-lithium-lifepo4-lfp-battery-charger/

The downside to both of them is they need to be disconnected when the batteries are charged. The onboard charger I have can be plugged in all the time. In addition each bank can be selected for lithium or AGM. I have both because Mercury Outboards electronics are not compatable with lithium and they will void the warranty if one is used. https://www.batterystuff.com/batter...MIlMDyouul9AIVQhh9Ch29pwoWEAQYAiABEgLQF_D_BwE

 

[Ozymandias]

Check these out, https://www.sterling-power-usa.com/
Decent stuff

 

[Ozymandias]

It's a different application than what you use yours for. The largest onboard boat chargers are 15 amps per bank (battery) and they are back ordered until at least Jan. The 10 amp per bank was readily available and is what most boats use. A 10 amp single is what the support tech sent me for troubleshooting. Speaking of the support tech, I sent him your quote "And for longevity, the Lithiums like it the most go keep them within a range from 20-80% SOC.
They dont like it to be fully charged every time you use them."

He replied "We recommend charging at 14.4v, 15V max. We recommend doing a top-up charge after every use." I'll stick with his advice.

Yep, like said, 14.4 is fine as it is around 80% SOC or a little above.
This is not fully charged what these lithiums could take.

 

[AH64ID]

Capable and optimal are not the same.

If you have batteries in series it’s a complicated setup to charge the independent of each other. Are you sure they are charged independently?

 

[GAmes]

Check these out, https://www.sterling-power-usa.com/
Decent stuff

I don't see a four bank charger but their best three bank is 30 amps which is 10 amps per battery. I'm unsure how it is usable in my application as far as mounting and wiring since it doesn't have any visible leads. My preference, had it been available, is the Minnkota 4X15. https://northlandmarine.com/products/minn-kota-mk-460-pcl-on-board-precision-charger-4x15-1834602 but I'm sure the one I have is more than adequate.

 

[AH64ID]

How are the batteries installed? Are they 3 independent batteries? One big battery?

 

[GAmes]

Capable and optimal are not the same.

If you have batteries in series it’s a complicated setup to charge the independent of each other. Are you sure they are charged independently?

Not complicated at all. One set of leads per battery. Attach them to the correct battery posts and plug the unit in. Prior to receiving the lithiums I attached the AGM to one of the leads and charged it.