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DENGOH
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Any accessories that can plug into this Blitzwolf solar panel to charge 12v car battery that parked under sun?
Or use a cheap boost circuit will do? Will it spoil the car battery?
Thanks.

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JasonWW
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DENGOH wrote:
Any accessories that can plug into this Blitzwolf solar panel to charge 12v car battery that parked under sun?
Or use a cheap boost circuit will do? Will it spoil the car battery?
Thanks.

I would think you will need a specific charger for car batteries to prevent over charging.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos including GT 

Texas_Ace BLF Calibrated Lumen tube

 

DENGOH
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I am thinking if I use a boost circuit that set the voltage to let’s say 13.5V, so it won’t charge the car battery to 14+V, will it still over charge the car battery?
According to article below, it is the maintenance phase, looks like it is not charging the battery anymore.
https://www.westmarine.com/WestAdvisor/Selecting-a-Battery-Charger

cool i'll see you when you get there

JasonWW
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DENGOH wrote:
I am thinking if I use a boost circuit that set the voltage to let’s say 13.5V, so it won’t charge the car battery to 14+V, will it still over charge the car battery?
According to article below, it is the maintenance phase, looks like it is not charging the battery anymore.
https://www.westmarine.com/WestAdvisor/Selecting-a-Battery-Charger

I really don’t know. I’ve got two new charger/maintainers on motorcycles and they tend to maintain at about 12.6v to 12.8v. They have advanced circuitry like in the link you posted where it goes through multiple phases to charge, monitor and maintain the batteries.

I know there are solar chargers for 12v RV’s and boats, etc… You don’t want to get one of them? If not, I would do some online research to see if these 5v units can be rigged and not ruin your battery.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware, lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70, Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

9 NarsilM user videos including GT 

Texas_Ace BLF Calibrated Lumen tube

 

DENGOH
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Ya, I have two car battery chargers those do multi phase charging. I think this Blitzwolf is good product and if it can be used for multi purpose besides charging mobile phones, it will be even better. That is why I am not keen on getting those 12v solar for car, and not sure how is the quality/price compared to Blitzwolf.

cool i'll see you when you get there

petemer
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DENGOH wrote:
I am thinking if I use a boost circuit that set the voltage to let’s say 13.5V, so it won’t charge the car battery to 14+V, will it still over charge the car battery? According to article below, it is the maintenance phase, looks like it is not charging the battery anymore. https://www.westmarine.com/WestAdvisor/Selecting-a-Battery-Charger

I’m no expert either but from what I understand I’d say this should work and will not overcharge the battery. But this will reduce charging efficiency as you would have two converters in series (Blitzwolf already has some kind of converter for 5V), charge rate would also be reduced by placing the panels behind glass window.

petemer
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petemer
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petemer
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BlitzWolf® BW-WP1 10000mAh Dual USB Lithium Polymer Battery Power Bank With Wireless Charger

Use coupon code 19WP1 to get $19.99 price (17% OFF)

This is a very advanced power bank with wireless charging:

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petemer
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petemer
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Haikelite SC26 XHP35 HD/HI 2050Lumens Modes Set Brightness Portable EDC 26650 LED Flashlight + 26350 Tube

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  • 20 color/LED combinations to choose from
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DENGOH
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petemer wrote:
DENGOH wrote:
I am thinking if I use a boost circuit that set the voltage to let’s say 13.5V, so it won’t charge the car battery to 14+V, will it still over charge the car battery? According to article below, it is the maintenance phase, looks like it is not charging the battery anymore. https://www.westmarine.com/WestAdvisor/Selecting-a-Battery-Charger

I’m no expert either but from what I understand I’d say this should work and will not overcharge the battery. But this will reduce charging efficiency as you would have two converters in series (Blitzwolf already has some kind of converter for 5V), charge rate would also be reduced by placing the panels behind glass window.

Ya, efficiency will be low unless tapping on the voltage before the 5V regulator. I wonder anyone measure the voltage before the 5V regulator.

cool i'll see you when you get there

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