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tell me what charger to get

tell me what charger to get

Old 09-13-2011, 08:00 AM
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Default tell me what charger to get

tell me what charger i should get. im racing and will be running 2s 5000 packs. and some 3s packs. i would like something that can put out 10 amps. what charger should i get. the tp610c seems like it would work.... does that need a power supply?

what about the i chargers. what p/s would i want to get for one of those.
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Old 09-13-2011, 08:16 AM
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charging a lipo at 10amps isnt the best thing. Long and slow is the best.

I use thunder AC6 chargers under $45 they do everything
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Old 09-13-2011, 08:19 AM
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Originally Posted by Chase1472 View Post
charging a lipo at 10amps isnt the best thing. Long and slow is the best.

I use thunder AC6 chargers under $45 they do everything
I'm to new to lipo's to be sure why this is stated. I've been running my new gens ace batteries once a week for 10-20 weeks and every charge they get 15amps. The directions from gens state that they can handle 25amp charge so I figure 15 is plenty safe.

That thunder charger tp610 is nice but bump up a few dollars and get the same charge with the ac/dc power supply built in. I just bought one here on rctech for $60 shipped and they are 120 new. The built in AC cord will allow charging of 7amps and if your on DC power you can charge at 10amps.

Personally I have a Hyperion charger which I love but the cost is higher.

with built in power supply: http://www.amainhobbies.com/product_...ger-w-Balancer
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Old 09-13-2011, 08:33 AM
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The onyx 245 is a nice charger and does 2 at a time along w/ balancing
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Old 09-13-2011, 08:37 AM
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Originally Posted by Chase1472 View Post
charging a lipo at 10amps isnt the best thing. Long and slow is the best.

I use thunder AC6 chargers under $45 they do everything
the higher amperage would be for larger batteries for when i bash other vehicles.
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Old 09-13-2011, 08:38 AM
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Originally Posted by nitro0619 View Post
The onyx 245 is a nice charger and does 2 at a time along w/ balancing
that charger will only put out 45 amps per port. that wont even charge a 5000 mah battery at 1c
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Old 09-13-2011, 09:03 AM
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I got a b max 5 amp charger on ebay for 4.01 plus shipping. with power ac total cost 16.01 took 2 weeks to get here. its a back up I also have a thunder pro that goes to 10 amps but charging lipos I stay at 2 amps and they have lasted a year so far. charging 2' 3' and 4's
Good luck charging at 10
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Old 09-13-2011, 09:12 AM
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Originally Posted by slash24 View Post
that charger will only put out 45 amps per port. that wont even charge a 5000 mah battery at 1c
Not trying to be a jerk here but... I don't know where you learned math at or how you understand battery charging rates but your logic above is flawed.

A 5000mah battery at 1C charge rating requires 5amps to charge in a 1 hour period. If the 5000mah had a 2C rating then it would reguire 10amps to do it in a 30 minute time.

To figure it out, 1 amp equals 1000mah so in this case, 5000mah divided by 1000 equals 5amps. Therefore, at a 1c rating 5amps is required to charge the battery in a 1 hour time.

Somebody else can come along and correct me that is actually more knowledgeable in electrical theory than me. That's just what I remember from my engineering courses a couple years ago.
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Old 09-13-2011, 09:27 AM
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Originally Posted by SDR View Post
Not trying to be a jerk here but... I don't know where you learned math at or how you understand battery charging rates but your logic above is flawed.

A 5000mah battery at 1C charge rating requires 5amps to charge in a 1 hour period. If the 5000mah had a 2C rating then it would reguire 10amps to do it in a 30 minute time.

To figure it out, 1 amp equals 1000mah so in this case, 5000mah divided by 1000 equals 5amps. Therefore, at a 1c rating 5amps is required to charge the battery in a 1 hour time.

Somebody else can come along and correct me that is actually more knowledgeable in electrical theory than me. That's just what I remember from my engineering courses a couple years ago.

easy there champ i meant watts. and its actually only 40 watts per port now that i look at it again. current is equal to wattage divided by voltage. to correct me if im right but 40 watts divided by 12 volts is 3 amps.... repeating of course.
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Old 09-13-2011, 09:40 AM
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Yeah Watts I'm glad you brought that up
How many watts of power should a charger have ???
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Old 09-13-2011, 09:40 AM
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Originally Posted by slash24 View Post
easy there champ i meant watts. and its actually only 40 watts per port now that i look at it again. current is equal to wattage divided by voltage. to correct me if im right but 40 watts divided by 12 volts is 3 amps.... repeating of course.
Okay, that makes way more sense now. You had me googling trying to figure out what charger on the market could charge at 45 amps. I wasn't trying to be a dick either, but I didn't want you or somebody else trying to buy something they didn't need. My apologies if I've offended.

If memory serves, you're amps math is pretty close. Its roughly 3.33 amps at 40 watts. So, you'd need something more substantial to charge the 5000mah battery within an hour. My 2650mah takes right at 30 minutes to charge at 2C rate of 5amps if I run it down to the voltage cutoff. I'm using a Venom Pro charger thats AC/DC.
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Old 09-13-2011, 09:52 AM
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yeah i had a brain fart
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Old 09-13-2011, 09:55 AM
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Originally Posted by Lazer Guy View Post
Yeah Watts I'm glad you brought that up
How many watts of power should a charger have ???
And what features would be nice to have on a new charger ???
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Old 09-13-2011, 10:08 AM
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To figure out what you need out of a charger you'll need to take many things into consideration. what are you charging? What's the capacity(mah)? And do you plan on charging in parallel?
Chargers are rated in amperage and wattage, to determine your needed amperage take your mah And divide by 1,000 this is your amp rate. So if you have a 5,000 mah battery ands you want to charge at a 1c charge rate you'll need a 5 amp charger.
To determine your wattage needs take your fully charged voltage of your packs, and divide your available wattage power by that and that will give you your available amperage. Take a 80watt charger and try to charge a 4s battery. Its available amperage is only 4.7 amps, Evan though most 80watt chargers are labled as a 10 amp.
And this all gets a bit more confusing when you want to charge your packs in parallel.
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Old 09-13-2011, 10:32 AM
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Wattage is based on input to the charger but relates to output of the charger as well. We'll base it on the 45w charging
A 5000mAh 2 cell battery will charge at 5amp all the way through the charge, until it hits 9v. When you hit that 9v point, the amp rate will go down. 5 amp x 9v=45w. With a 2 cell lipo, this will never come into play. If you get into 3 cell lipo batteries it will come into play. It won't hurt the batteries but it will take longer to charge those batteries.

I have the Hyperion AC/DC charger which is nice for any of my 1/10 scale race stuff and my comp crawlers. For the 1/8 stuff it just takes to long to charge. I have a Hitec X2 charger for that. The biggest downside is that it is strictly DC so you need a power supply but you can get them cheap. A couple of nice benefits of it are 200w per channel and it will do 2 batteries at the same time. That's 400w of output. The Protec dual charger is the same one.
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