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-   -   Lipo Help (https://www.rctech.net/forum/electric-off-road/973490-lipo-help.html)

traumajunkie 01-06-2017 04:40 PM

Lipo Help
 
I went and bought a 3 lipo batteries today and now feel this may have been a mistake after what I have read. The batteries came with no "lipo bag" and I have one fully charged and laying on the kitchen table while I sit at work. Not sure If I should put them outside in the garage (27 degrees ) or throw them away lol because I def dont want it to blow. Also I was told to charge the battery fully after use I now see this is not correct. When I bought the battery I bought a Radient Ascend charger but I don't see a "discharge feature" like recommended for storage. Any insight would be very appreciated.

EbbTide 01-06-2017 04:50 PM


Originally Posted by traumajunkie (Post 14792309)
I went and bought a 3 lipo batteries today and now feel this may have been a mistake after what I have read. The batteries came with no "lipo bag" and I have one fully charged and laying on the kitchen table while I sit at work. Not sure If I should put them outside in the garage (27 degrees ) or throw them away lol because I def dont want it to blow. Also I was told to charge the battery fully after use I now see this is not correct. When I bought the battery I bought a Radient Ascend charger but I don't see a "discharge feature" like recommended for storage. Any insight would be very appreciated.

The most rudimentary way to discharge a battery partially is to just run it in your car or truck and check the voltage every now and again until you get around 7.2v That would be the voltage you want to store your 2s lipo batteries until you're ready to drive on a fully charged battery

Lipo safe bags while nice to have, are not entirely necessary because it's usually pretty easy to tell when a lipo is going bad. It'll either puff up or one of the cells won't balance out. And when that happens then it's time to dispose of them. So I doubt you need to throw your lipos away. Just take the time to understand the storage and safety aspect. Storing them you want a cool dry place around room temperature. Always balance charge them. No exceptions.

Thrifty 01-06-2017 04:53 PM

You'll be fine bro... I charge mine either the night before or the morning when I'm heading to the track for the day.. when my day is winding down I also start putting the ones I'm using into storage mode while there.. I have had a day cut short and just put them on the charger under storage setting when I got home and let them do their thing.. they don't discharge as fast that way but end up the same...

traumajunkie 01-06-2017 05:14 PM

How do you do the storage mode ? Mine have been fully charged for over 24 hours now... I should have educated myself first before buying

Rather Race 01-06-2017 05:21 PM


Originally Posted by traumajunkie (Post 14792349)
How do you do the storage mode ? Mine have been fully charged for over 24 hours now... I should have educated myself first before buying

read your manual for the charger is should tell you how to discharge battery's and how to storage charge them

ahawk65 01-06-2017 05:43 PM


Originally Posted by traumajunkie (Post 14792349)
How do you do the storage mode ? Mine have been fully charged for over 24 hours now... I should have educated myself first before buying


It's possible your charger does not discharge. You can run your car and check your voltage if you're wanting to store it at a particular charge level, like the 7.2v mentioned before. At the end of the day, you'll probably be okay either way.

Billy Kelly 01-06-2017 05:59 PM


Originally Posted by traumajunkie (Post 14792349)
How do you do the storage mode ? Mine have been fully charged for over 24 hours now... I should have educated myself first before buying

Don't worry. In 6 years I've never once discharged a battery in any way other then by drving. I've had batteries charged and then sit for weeks. No problems. Yes I've had things go wrong. All were my fault. Punctured one not paying attention. Forgot vehicle low voltage was turn off. Left a battery plugged in for couple weeks. All were mistakes. All were my fault.
Yes lipo fires have been in the news thanks to hover board and cell phones. But overall they are used in so many thing that we pay no worry to.

traumajunkie 01-06-2017 06:03 PM

I know these topics have been posted and beat like a dead horse so I appreciate the replies. I will run the car and get the voltage to the 3.87 per cell as the charger manual states, sadley it does not offer a stoage mode. I am curious though as to why the battery is reading over 10 volts when its a 7.4 volt battery

EbbTide 01-06-2017 06:05 PM


Originally Posted by traumajunkie (Post 14792395)
I know these topics have been posted and beat like a dead horse so I appreciate the replies. I will run the car and get the voltage to the 3.87 per cell as the charger manual states, sadley it does not offer a stoage mode. I am curious though as to why the battery is reading over 10 volts when its a 7.4 volt battery

That doesn't sound right. Did you say you bought 3 lipo batteries, or one 3s lipo battery?

traumajunkie 01-06-2017 06:14 PM

I bought (3) 2s 5000mah 30c lipos

EbbTide 01-06-2017 06:16 PM


Originally Posted by traumajunkie (Post 14792411)
I bought (3) 2s 5000mah 30c lipos

Well either your volt reader is bad or the batteries are 3s because you should only see a maximum of 8.4v on a fully charged 2s lipo.

traumajunkie 01-06-2017 06:21 PM

2 Attachment(s)
this is after 20 minutes so unless i am having a brain fart as far as numbers go. Now I am at work but have the throttle trim on

Thrifty 01-06-2017 06:21 PM

Return that charger and get one that will do the job correctly...

Thrifty 01-06-2017 06:31 PM

Looks like your charger should balance.. did it come with the balance board? The manual almost sounds like it didn't but you have to have one yourself and when you plug one in it will give you the option to use that function...

Here's a link to the manual... press me

traumajunkie 01-06-2017 06:35 PM

Balance board? I connect both deans connectors from battery to charger then I plug the micro plug on the battery to the front of the charger. I feel like an idiot over charging batteries but i know when I first checked the volts it was over 10, both cells were 5.2 somthing


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