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Ask Bill

Welcome to Ask Bill! If you have a question about our products or need some help and guidance with an off-grid power or lighting project please use our contact form to ask Bill.

You may also find answers to your questions in the numerous Help and Info articles available via this page.

Sub-Category

Posted by in Ask Bill on Apr 14, 2020 .

Customer question (received via email 5th April 2020):

Hi. I am thinking of getting an Optimate solar battery conditioner/charger for my Porsche Cayman (3.4 litre flat 6 engine) during the current period of driving restriction as I don't have power in my garage. I have a couple of questions:

1) What size charger would you recommend? I have an off street parking space where the car would be parked pretty much due East but I could potentially leave the panel outside the car facing south (I assume the panel is weatherproof) during the day. However I do not have anywhere I can fix the panel permanently so would not want to do this...

Posted by in Ask Bill on Mar 02, 2020 .

Customer question (received via email 1st March 2020):

Hi there

I am looking for some advice please.  I have a Land Rover Defender 110 which is my second vehicle and therefore doesn't get used that much. I use it as part of my Scouting ( carrying equipment,towing trailers, safety vehicle to walking events etc). I also use it as a volunteer for a 4x4 response group where we can get called out by the authorities to assist in bad weather, floods etc. Other than that I tend to run it occasionally just to keep it ticking over. 

I need to look at a trickle charge system to keep the battery topped up when I am not using it. The car is...

Posted by in Ask Bill on Oct 15, 2019 .

Customer question (received via email 14th October 2019):

Hi, I have a VW T6 Transporter Camper with a Varta 000 915 105 FC 12v 70Ah EFB+ Stop/Start battery.

Would the Optimate 10W Solar Charger be compatible with this please? Ideally, I want to charge via the dashboard 12v cigarette socket (which is on without need for the ignition).

Many thanks.

Nigel

Willgen Reply (Email from Bill 15th October 2019): 

Hi Nigel,

many thanks for getting in touch.

Yes the Optimate 10W is compatible with your VW T6 battery.

If positioned outside, in an un-shaded South facing location. the Optimate 10W solar panel will be...

Posted by in Ask Bill on Aug 15, 2019 .

Customer question (received via email 14th August 2019):

Hi,
I'm looking for a solar charging system for my motorbike which is kept in a garage with no mains power. I have seen the OptiMate 10W Solar Charger (OP10) on you website. Do you think this would do the job. Do i need anything else in the way of connections to attach to the bike? Also is there a mounting bracket or anything available?

Thanks Chris

Willgen Reply (Email from Bill 15th August 2019): 

Hi Chris,

many thanks for getting in touch.

The Optimate 10 is ideal for maintaining your 12V motorcycle battery.

The Optimate 10 comes with a weatherproof battery...

Posted by in Ask Bill on May 17, 2018 .

Customer question (received via email 16th May 2018):

I have a Smart ForTwo Smart Car I have had to replace my battery. The car is not used more than short trips around town. I want a dashboard solar trickle charger to maintain the battery. What do you recommend?

Peter

Willgen reply (from Bill 17th May 2018):

Hi Peter,

Many thanks for getting in touch.

For dashboard use the simplest method of connection of a solar charger to the battery is via the cigarette lighter socket. However, please be aware that in many modern cars the cigarette lighter socket is disconnected when the ignition is turned off and the key removed. If...

Posted by in Ask Bill on Jul 12, 2016 .

Customer question (received via email 22nd June 2016):

Hi, I am considering buying a solar trickle charger for my BMW M3 CSL as I keep the car outside and like the idea of having a charger that doesn't need to be connected to the mains.  The battery on the car is a lightweight one (12V 55Ah).  I would like to mount the solar panel in the car (not outside) and have it plugged into the cigarette lighter socket. 

Could you recommend the best charger for my needs?

Thanks
Graham

Willgen Reply (Email from Bill 22nd June 2016):

Hi Graham, many thanks for getting in touch.
 
If you want to keep the solar panel in the car and...

Posted by in Ask Bill on Jun 15, 2016 .

Customer Question (received via email 14th June 2016):

I am wanting to buy a solar panel to trickle charge my campervan battery plus a solar charge controller. My battery lable is as follows- 12v 74Ah 750A(EN). What combination would you recommend? I live in the north of Scotland.
Many thanks,
Kay 

Willgen Reply (Email from Bill 14th June 2016):

Hi Kay, many thanks for getting in touch.

To maintain your battery (assuming there are no continuous loads such as an alarm) I would recommend you use a 10W solar panel provided it can be positioned in an un-shaded, south facing position at an angle of 35 to 90 degrees from the...

Posted by in Ask Bill on Mar 01, 2016 .

Customer Question (received via email 1st March 2016):

Hello, I'm interested in buying one of your BP 10 watt 12 volt panels. Id like it to keep a 12 volt 74 ah battery charged that will be hooked up to some led pathway lighting. Can I wire the panel directly to the battery? Thanks

Willgen Reply (Email from Bill 1st March 2016):

Hi, many thanks for getting in touch.

Rather than wiring the panel direct to the battery, I would recommend installing a charge controller between the solar panel and battery to protect the battery from damage through overcharging. The charge controller will also prevent battery drain back to the panel...

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