Date: Thu, 30 Apr 2020 18:01:06 -0400
Reply-To: Theodore Hoekman <thoekman@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Theodore Hoekman <thoekman@GMAIL.COM>
Subject: Re: Charging Lithium battery
In-Reply-To: <CACiW0sNO4b_yeBB1A0YZAaKLuVzHGdE-AiN9b_J45L4hFf-8Tg@mail.gmail.com>
Content-Type: text/plain; charset=utf-8
I have a similar solar panel arrangement and a truck fridge replacing the Norcold frig in a 95 EVC. I find that when I am parked where sun is not strong all day and plugged into shore power that I can clip a jumper across the solenoid in the engine compartment and keep the starter battery charged as well. My satellite radio and the van radio run off that battery so that keeps the charge up and lets me listen to my favourite stuff. Once when I forgot to clip the jumper back after a grocery trip, the battery was below starting power. Hooked up the jumper and a half hour later it was back to full function.
Ted
PS Just realized this was a vanagon list thread so the solenoid present in my EVC is not part of the configuration in the vanagon, which I have also had years of experience with, but not with solar panels. I suspect there might be a way to do a double charge from the house battery to the starter battery with a jumper to bypass the relay if needed, but the details of the circuitry are not in my brain for the vanagon..
Theodore Hoekman
thoekman@gmail.com
19 York St.
Newbury, ON N0L 1Z0
(519)719-0342
Blog:http://Tedspassivesolarhouse.wordpress.com
> On Apr 30, 2020, at 2:58 PM, Bruno Walser <bruno.walser@MULTAVISTA.COM> wrote:
>
> I just installed the Renogy DCC50S DC-DC solar charger for my two 100 Watt
> solar panels on the roof of the van. It's great to have one relatively
> small device that can charge the starter battery and house battery through
> solar and/or alternator. I have also looked into the possibility of
> hooking up shore power. I believe the easiest way is to connect a battery
> charger to the house battery. This would charge your house battery when
> connected to shore power, but not the starter battery. That
> shouldn't really be a problem as the starter battery is typically not
> discharged while
> camping.
>
> Bruno Walser
>
>
>
>
>
> On Wed, Apr 29, 2020 at 1:51 PM Dennis Haynes <d23haynes57@hotmail.com>
> wrote:
>
>> Steve, Ken,
>> I didn’t realize this unit has both Alternator DC and Solar inputs.
>> Sorry for the miss information.
>>
>> Dennis
>>
>>
>>
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
>> Of kenneth wilford (Van-Again)
>> Sent: Wednesday, April 29, 2020 12:39 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Re: Charging Lithium battery
>>
>> Bill, we actually sell the Redarc and have used them in a Vanagon
>> application. I would recommend the 25 amp version because of the output of
>> the alternator, it really doesn't have enough extra capacity to do more
>> than 22 amps anyway. So you could buy the 40 amp version, but you really
>> wouldn't get any extra benefit out of it with the stock waterboxer
>> alternator.
>>
>> The Redarc is an amazing device. It is smart so it maintains the battery
>> correctly, and will also act as a solar controller, and a battery
>> isolator. All of these in one unit that is very well made in Australia. I
>> highly recommend it if you are going down the Lithium battery path.
>>
>> Here is a link to it on our site:
>>
>> https://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.vanagain.com%2Fshop%2Fdual-input-25a-in-vehicle-dc-battery-charger&data=02%7C01%7C%7C29c682c1c24d4c56ac3508d7ec5be60e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637237751757022040&sdata=2T00CSQG3m27g1UIwrU0xqUP5i3dalGM033ShNCW4aE%3D&reserved=0
>>
>> On Wed, Apr 29, 2020 at 6:59 AM Bill Berg <overthehillbill@gmail.com>
>> wrote:
>>
>>> Anyone on here familiar withe RedArc battery charger /solar controller ?
>>> Considering it to charge 100ah Lithium house battery and trying to
>>> decide between 25 or 40 amp models. Anyone have experience with these?
>>> Just want to make sure I don't go to high on amperage and overheat the
>> alternator .
>>> Currently running a 90 amp alternator with no unusual loads over stock
>>> Vanagon.radio and interior lights and usb all on house battery and
>>> eventually a all electric fridge.
>>>
>>> <
>>> https://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.
>>> avast.com%2Fsig-email%3Futm_medium%3Demail%26utm_source%3Dlink%26utm_c
>>> ampaign%3Dsig-email%26utm_content%3Dwebmail%26utm_term%3Dicon&data
>>> =02%7C01%7C%7C29c682c1c24d4c56ac3508d7ec5be60e%7C84df9e7fe9f640afb435a
>>> aaaaaaaaaaa%7C1%7C0%7C637237751757022040&sdata=f3zNStOUIZwCofcdBcd
>>> pB7CCKGuAcx%2FBh3kDWkCkpkk%3D&reserved=0
>>>>
>>> Virus-free.
>>> https://eur05.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.a
>>> vast.com%2F&data=02%7C01%7C%7C29c682c1c24d4c56ac3508d7ec5be60e%7C8
>>> 4df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637237751757022040&sdata
>>> =BQD1T1giu4xUyf3TSMmPAWwIdr6t%2BRmiz7uQWAkBx1I%3D&reserved=0
>>> <
>>> https://eur05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.
>>> avast.com%2Fsig-email%3Futm_medium%3Demail%26utm_source%3Dlink%26utm_c
>>> ampaign%3Dsig-email%26utm_content%3Dwebmail%26utm_term%3Dlink&data
>>> =02%7C01%7C%7C29c682c1c24d4c56ac3508d7ec5be60e%7C84df9e7fe9f640afb435a
>>> aaaaaaaaaaa%7C1%7C0%7C637237751757022040&sdata=MdzgKfzAYCFbmK6bbMQ
>>> 8LF8y5OLS8Qfgmd5j8v%2Fr654%3D&reserved=0
>>>>
>>> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>>
>>
>>
>> --
>> Thanks,
>> Ken Wilford
>> John 3:16
>>
>> https://eur05.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.vanagain.com%2F&data=02%7C01%7C%7C29c682c1c24d4c56ac3508d7ec5be60e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637237751757022040&sdata=IlgRiCrkfAX6LgFOnosxxRxVk6Askszw085%2FKbeusoM%3D&reserved=0
>>
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