RC India

Hai guys I recently purchased a Turnigy MAX80W 7A Lithium Polymer Battery Charger..

http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=11341&Product_Name=Turnigy_MAX80W_7A_Lithium_Polymer_Battery_Charger

But came with no adapter i dont know which adapter to purchase.. It has a +ve (red) -ve (black) wires with alegator pins to connect to a battery thats it.. what shall i do??

If you are not going to use more than 3S Li-Pos then a laptop supply of 15.5 V 5-6A is a practical, and not very expensive solution. Your charger possibly has a socket on the side for the power supply (most do). You could get the supply fitted with a plug that matches this for size and polarity.

It is mentioned at the bottom that the power supply isn't included... you should have checked it out previously...
and yes.. you will have to purchase a cherging harness along with the charger... i guess it contains only xt60 connecting wires... turnigy is beiing selfish by not supplying universal charging harnesses, ESPICIALLY FOR THE DEANS, along with the charger.

Sorry! Just checked the listing and one of the reviews clearly states that there is no charge socket. So you will have to make a male/female connection to the input wires. Female on the supply, male on the charger.

it has a xt60 at the output... the charger is like an aligator pin to connect to car battery..
no charger in hobbyking is providing such a connection

no, aligator plugs are provided with all. but they also provide leads to charge through futaba connector, jr connector and all sorts of plugs. in max80W, only an xt60 is provided, dats being selfish of hobbycity...

HK used to supply all their batteries with deans(clones) before, and due to licensing issue, they switched to XT60, If they have to use deans then they have to use original deans which will UP the charger price.

Better to up the price and give multiple connectors.

Or, at least, offer them as an optional extra.

yep... charging harness is available at hobbycity... very good quality... but if they can include a multiconnector charging harness in accucell 6, then they can include it in max80W also...

You can always solder a dean, or opt for the extra harness. For example, many people who are new to hobby opt for XT60 as they all get the batteries from Hk(me for example).

Haii guys... XT60 is there... My question is where shall i connect the charger to the ac socket???

Hi Pushpa,
The alligator pin cable came bundled can be used with any 12V car battery and can be used as a field charger. to use it in house, best is to use your computer SMPS (power supply) or purchase a IBM Laptop adapter/charger which will cost you around rs.500. please check the output voltage of charger and should not exceed 18V.
Sandeep

Please refer to my earlier posts.

You will need:

1. A power supply.
2. A suitable connector set to mate the charger with the supply.

I am confused. Is there a connection between Pushpa and Sreedhar? Both have posted the same message separately. One is from Kerala and the other from Karnataka?  :headscratch:

I am confused too !  Merging the topics anyway.

Is it enough to use a 12v laptop charger???

You can use cpu [computer] power suply . Use black wire to -ve and yellow wire for +ve.I am useing this to my X-CHARGER B6.

Will work, just make sure you don't exceed the current rating of the adapter. Your 80W charger can draw about 7A max from the adapter. Most laptop adapters have a lower current rating.

yes most of the laptop chargers are 12~18v 4~5A.. so it wont be a problem rite???

This post from Rao-ji explains the issue well.

http://www.rcindia.org/batteries-and-chargers/selecting-a-charger/msg2448/#msg2448

Basically, you have have to aware of the total wattage, which can overwhelm the charger if you charger a high capacity battery. For example, if you are charging a 4000mAH 6s battery with a 50W/5A charger, you can only charge it at roughly 2A which 0.5C (instead of the usual 1C).

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6256&Product_Name=12V_5A_Power_Supply
I am using this one.

yeah it wont be a problem... you can  choose a power supply  which has 4-5A but has higher voltage... i suggest you to use a 85W or so power supply keeping in mind the power losses... 85W will come to around 78-80W after the losses...

Reading so much about maximum power ratings  w.r.t chargers makes me want to know the %age of electric flyers who would need high capacity chargers.

So, Anwar, how about a poll to find out the type of batteries guys are using? Could be divided into just a few categories to simplify things.

help.. when i asked a local shop, he told me that he can make a 12V 5A supply.. will this cause any problem to my charger???

If you are charging using NO more than close to 5A (a bit less would be preferred), then the simplest option is to find a laptop power supply.  Should be able to find one from older laptops.

Remember that if you charge any 3s lipo upto 2500mAH at 1C (probably the most common case), you will use only 2.5A. 

The problem is that people use a variety of batteries.  Also, many people now charge 2x3s (or 2x2s) batteries simultaneously, which also affects charger selection.

I think the most common case is that of a 5A 50W charger.  And those are very very affordable too these days.

In any case, what are your suggestions for poll categories/options ?

Why make one when you can get a ready made one with a 5A rating for around Rs.850.

Its not available in my area.... laptop chargers are not dependable they may break down any time.. i am a victim.. duplicate lap chargers dont provide warrenty.. if i make one atleast i can ask him what has gone wrong.. If at all i want to buy a charger then i will have to import from mumbai or so.....

Sreedhar

I have bought 4 for myself and friends. ALL are working fine, so far. Let me know if you wan't one . Will send it to you but the shipping, if by courier, would be a fair amount.

Exactly my point! Not many users of high power chargers and they would know of the pitfalls, in any case. For the rest a 50W charger + 5A supply is all they would need.

The idea was to quantify what you and I feel, instinctively.

why go in for 12V, 5A, when you can use the laptop power supply you have. Laptop power supply will give you a higher wattage which your charger can use quite efficiently.

IF YOU HAD TO USE A 12V WITH 5A POWER SUPPLY THEN YOU SHOULD HAVE PURCHASED A TURNIGY ACCUCEL6 OR A TURNIGY ECO50...

This is what i think... Go ahead and use your Laptop Power Supply...
Charger Input Voltage Range: 10~18V
Charger Input Current Range: 1~7A

I am just trying this power supply guys... Lets see what happens....

Guys i connected the charger to a battery eleminator with rating 12v 5A. the charger powered up but showed ""input vol err"" then i connected it to a 12v 3~4A battery. then there was no problem.. does this means 5A is too much for the charger??

guys i checked ebay but can find only charger rating 18.5~19v.. can anyone tell me where to get a 12v laptop charger??

If you have some knowledge of electronics then i think the SMPS Power supply is very cheap option. It has a wattage of 350 onwards. If you need any help regarding the smps power supply i can help.

Basically, what you need is something like this :

http://cgi.ebay.in/CONTINUOUS-5-POWER-SUPPLY-ANY-CHARGER-/110309117971?cmd=ViewItem&pt=LH_DefaultDomain_203&hash=item19aeef9013#ht_2003wt_907

BTW, the PC SMPS is a great alternative, and the price should be around Rs.500 (if my memory serves right).

I think you can get at around Rs350/- for intex or iball for 350W

http://www.rcindia.org/batteries-and-chargers/selecting-a-charger/msg2448/#msg2448

Please read the above link which I posted earlier.

Actually I wanted to post the link to this particular post, instead of posting the entire post again but I have no idea about how to do that. :headscratch:

Anwar Sahib some pointers would help me. :)

[ADMIN EDIT] I posted the link.  To post a link to a particular earlier post, just right click on the "heading" of that particular post, and choose "Copy link" or "copy link address", and paste it wherever you want it to be.

I had already posted it earlier in this thread itself : http://www.rcindia.org/batteries-and-chargers/turnigy-max80w-7a-battery-chargery-prob/msg23316/#msg23316

Sorry Anwar Sahib I missed the post. And thanks for the tip. ;D

Rao

Only if you need the extra power. A laptop supply is a  more compact and neater solution for, like we said, most of us.

sreedhar, use a smps..... its the best option. here is a link to a tutorial... http://www.youtube.com/watch?v=CT1tiQOz3LU

i advise you to check all the parameters with a multimeter before using it... i.e. current, voltage

I already ordered the following product from sai uncle

http://cgi.ebay.in/CONTINUOUS-5-POWER-SUPPLY-ANY-CHARGER-/110309117971?cmd=ViewItem&pt=LH_DefaultDomain_203&hash=item19aeef9013#ht_2003wt_907

That is the laptop power supply I have been referring to all along.

yes sushil it is...

Guys at last my charger started to work... Its very beautifull..... Thank you every one for the support and love.....