Inverter w battery charger - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > General Interest Forums > Gear & Maintenance
 Not a Member? 
  #1  
Old 07-09-2013
Member
 
Join Date: Jun 2013
Posts: 78
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 1
sully75 is on a distinguished road
Inverter w battery charger

I just bought a cheap inverter for my boat. It's working well so far. My only concern is that it says that you should not plug in battery chargers for power tools into it. I have a cordless drill I would really like to be able to use. I also have a good quality AA charger that I really need.

Am I screwed as far as using this stuff with the inverter?

The link is below.


ENERGIZER 180W Cup Inverter 12V DC cigarette lighter to 120V AC to power laptop notebook & more w/ 4 USB ports 2.1A shared compatible with iPad & more
http://amzn.com/B00ATXEPQI
Reply With Quote Share with Facebook
  #2  
Old 07-11-2013
Member
 
Join Date: Jun 2013
Posts: 78
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 1
sully75 is on a distinguished road
Re: Inverter w battery charger

Anyone got a solution for this? Thanks.
Reply With Quote Share with Facebook
  #3  
Old 07-11-2013
MSter's Avatar
Salty
 
Join Date: Apr 2008
Posts: 106
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 7
MSter is on a distinguished road
Re: Inverter w battery charger

Hey Sully...

I assume (dangerous word) you have a modified waveform inverter? While this type may provide A/C for small devices, it is not optimal for battery chargers, motors, and laptops for long-term use. If you were to look at the output with an O'scope, you would find this inverter puts out a squared waveform in an attempt to simulate your standard 110v house current. Without getting too far down the rat hole, this squared waveform is not optimized for what you are trying to use it for. If you want to run sensitive electronics I would recommend you find a True sine wave inverter. These are more expensive but put out A/C in the exact form used in your house.

On a separate note, if you were to use an inverter to run a flat screen TV, laptop, or similar device with it's own power supply...keep in mind you are converting DC to AC to DC. This is very inefficient and you should look for a direct DC alternative.
__________________
MSter
1983 Morgan OI 416
S/V Shamrock
Reply With Quote Share with Facebook
  #4  
Old 07-11-2013
Member
 
Join Date: Jun 2013
Posts: 78
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 1
sully75 is on a distinguished road
Re: Inverter w battery charger

Thanks for the reply. Currently I'm spent as far as budget goes. Ill have to charge my batteries on land and hope for the best.

I just charged up my laptop with the inverter. Am I in danger of damaging the laptop by charging it like that? Or will it just eat up the battery quicker? It looks like the battery remains full via the tester and my multimeter.

Thanks!
Reply With Quote Share with Facebook
  #5  
Old 07-11-2013
deltaten's Avatar
Senior Member
 
Join Date: Oct 2012
Location: Lancaster Co. PA/ North East, MD
Posts: 590
Thanks: 2
Thanked 12 Times in 12 Posts
Rep Power: 2
deltaten is on a distinguished road
Send a message via Yahoo to deltaten
Re: Inverter w battery charger

Rather than "AC to DC to AC", I'd look for a straight DC/DC car-type charger for those batts

HTH,
Paul
__________________
S/V Chrysalis
'80 Watkins 27
North East, MD
Reply With Quote Share with Facebook
  #6  
Old 07-11-2013
Senior Member
 
Join Date: Jan 2009
Location: Deer Harbor, Washington
Posts: 191
Thanks: 0
Thanked 5 Times in 5 Posts
Rep Power: 6
mitchbrown is on a distinguished road
Re: Inverter w battery charger

The laptop's power supply converts the AC from the inverter to DC probably 12 or 19 volts. The power supply pretty much protects your laptop from most AC problems. I wouldn't worry about it.

You can get a 12 volt power adaptor off ebay pretty cheaply, then you just plug it into a cig lighter plug and don't have to worry about the inverter at all. With the added benefit of increased efficiency.
Reply With Quote Share with Facebook
  #7  
Old 07-11-2013
MSter's Avatar
Salty
 
Join Date: Apr 2008
Posts: 106
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 7
MSter is on a distinguished road
Re: Inverter w battery charger

As previously mentioned, would look for a DC option for your electronics if available. Most laptop manufacturers have a 12v option and you can even find many aftermarket power supplies. You might even find one at your local Goodwill mixed in with the various cell phone chargers.

As for damaging your laptop battery or power supply??? YMMV...I will say any charge you get will not be optimal and it may shorten the battery life of the device. If in a pinch, go ahead and charge them up while you are on the boat. I would never leave them charging unattended or overnight for risk of fire.
__________________
MSter
1983 Morgan OI 416
S/V Shamrock
Reply With Quote Share with Facebook
  #8  
Old 07-11-2013
Member
 
Join Date: Jun 2013
Posts: 78
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 1
sully75 is on a distinguished road
Re: Inverter w battery charger

So is there something cheap that I could plug my drill charger in instead of the inverter?
Reply With Quote Share with Facebook
  #9  
Old 07-11-2013
MSter's Avatar
Salty
 
Join Date: Apr 2008
Posts: 106
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 7
MSter is on a distinguished road
Re: Inverter w battery charger

Not to make light of your situation but perhaps you could slip ashore for a cup of coffee? I have worked for more than a few hours while sitting in a Dunkin Donuts or Panera Bread with my laptop and cell phone plugged into their outlet to charge. I have not had anyone challenge me to leave or unplug.

Just a thought....
__________________
MSter
1983 Morgan OI 416
S/V Shamrock
Reply With Quote Share with Facebook
  #10  
Old 07-12-2013
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,447
Thanks: 3
Thanked 33 Times in 32 Posts
Rep Power: 7
Bene505 will become famous soon enough Bene505 will become famous soon enough
Re: Inverter w battery charger

Will likely only affect the battery lifespan.

Regards,
Brad
__________________
Posts you might like:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
. .
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
battery bank dual charger or triple charger? mbaillie Gear & Maintenance 23 06-29-2013 09:16 AM
inverter/charger Oday 30 Electrical Systems 1 11-22-2012 07:14 PM
Inverter/Charger questions trlrtrsh Gear & Maintenance 14 09-16-2011 11:16 AM
Inverter/Charger I33 General Discussion (sailing related) 13 12-20-2009 03:55 PM
Inverter/Battery charger question (Basis!) Mary51 Gear & Maintenance 7 09-16-2007 10:13 PM


All times are GMT -4. The time now is 05:09 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012