Solved

Solar

Posted on 2014-09-13
5
157 Views
Last Modified: 2014-09-15
0
Comment
Question by:speedtofly
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
5 Comments
 
LVL 49

Expert Comment

by:dbrunton
ID: 40321237
Short answer:  No.

Long answer:  It is a 9 watt device which means it charges at about 12 volts (roughly) and 0.75 amps.  Good for trickle charging or keeping a battery charge level.  To recharge a battery in a day you'd need 12 volts (roughly) and at least 5-6 amps.
0
 
LVL 92

Expert Comment

by:nobus
ID: 40321457
i have an old charger -  which charges 3-6 A; and was never able to charge a battery.
the smalles t batteries are 60 WH and even these i could not charge
so i assume this device won't do it either
also note that for charging a car battery, you should supply more than 12 V: 14 i believe is a minimum
0
 
LVL 23

Expert Comment

by:Danny Child
ID: 40322047
A lot of mains battery chargers have intelligent circuitry to provide the optimal charging current, and to test the current status of the battery.  I don't think you'd get this flexibility or charging rate from a solar panel.

They'd be good as a preventative measure to stop a battery going flat in the first place, but I don't think you'd recover a dead battery in a singel day with one.  

You can buy spare booster battery units if you need an instant fix though.
0
 
LVL 92

Accepted Solution

by:
nobus earned 500 total points
ID: 40322522
here an article  with a bit more info :  http://www.instructables.com/id/Solar-Car-Battery-Charger-DIY/
here a selection of chargers, with info on what they are to be used for :  http://www.batterystuff.com/solar-chargers/
0
 
LVL 92

Expert Comment

by:nobus
ID: 40323270
thanks - happy to help
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Stuck in voice control mode on your Amazon Firestick?  Here is how to turn it off!!!
This article outlines why you need to choose a backup solution that protects your entire environment – including your VMware ESXi and Microsoft Hyper-V virtualization hosts – not just your virtual machines.
Come and listen to Percona CEO Peter Zaitsev discuss what’s new in Percona open source software, including Percona Server for MySQL (https://www.percona.com/software/mysql-database/percona-server) and MongoDB (https://www.percona.com/software/mongo-…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…

695 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question