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Type: Posts; User: Jakey

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  1. Replies
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    RC LiPo packs should definitely NOT be discharged...

    RC LiPo packs should definitely NOT be discharged for storage. By "discharged", I mean pulled down to near an empty state of charge. For storage, hook the pack up to your charger and utilize the...
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    OK, sure .....

    OK, sure ..... <_<

    For the OP, please do everything possible to make certain you are not over-discharging your LiPo packs. You will notice the difference in battery pack operating life cycles.
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    I have to ask, where does the killer heat come...

    I have to ask, where does the killer heat come from? Most likely from over-Amping the pack or operating the system in high ambient temperatures. Over-discharging will also cause excessive heat. ...
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    By far the number one cause or RC LiPo pack...

    By far the number one cause or RC LiPo pack failure (including swelling) is due to over-discharging. In other words, running the battery pack down too low and/or storing the battery pack with not...
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    And after having worked in the RC battery OEM...

    And after having worked in the RC battery OEM business for over 14 years, I absolutely GUARANTEE your statement is incorrect!!!!

    And for the record, the inexpensive voltage checkers noted in this...
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    Just figure out the cut-off by yourself. Does...

    Just figure out the cut-off by yourself. Does your charger have a digital readout of the cell voltages? If so, run the pack aggressively until the LVC is tripped. Then remove the pack and hook it...
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    Well ... I have run data logging equipment on...

    Well ... I have run data logging equipment on numerous different Traxxas vehicles and of varying vintages and the cut-off my equipment recorded was always very close to 3.2 Volts per Cell. In...
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    People typically confuse the dynamic LVC set...

    People typically confuse the dynamic LVC set point with the voltage they see once a pack has been removed from the RC vehicle and then attached to the charger. By this time the cell voltages have...
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    ksb is correct! I am not referring to Graphene. ...

    ksb is correct! I am not referring to Graphene. I am referring to most RC LiPo packs in general. The more expensive and higher quality materials required to lower cell IR's, typically reduce cell...
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    Typically when looking a two packs from the same...

    Typically when looking a two packs from the same vendor and of similar capacity, the lighter weight pack will have the higher C-Rating. Higher C-Rating is directly related to lower cell IR's and...
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    The last I knew, the LVC for a Traxxas ESC is no...

    The last I knew, the LVC for a Traxxas ESC is no where near 3.6 volts per cell. It is more like 3.2 volts per cell.
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    Mechanical Engineer here with years of experience...

    Mechanical Engineer here with years of experience designing and working with compressible fluids, then transferring this all to electrical applications for RC battery and system use. Fluid flow and...
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    I am the previous owner and head Engineer for SPC...

    I am the previous owner and head Engineer for SPC Racing and I can say with absolute certainty, when we were still selling battery packs my testing showed MA packs to be a shameful embarrassment of...
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    You have got to be kidding! While they certainly...

    You have got to be kidding! While they certainly are expensive, make that stupid expensive; the performance of MA packs is average at best. Packs from SMC will noticeably outperform any equivalent...
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    For anyone having MANY of the original, new...

    For anyone having MANY of the original, new Traxxas female connectors laying around, what a potential turn of events?
  16. Thread: Lipo wont charge

    by Jakey
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    Please do not do it! I already posted my advise...

    Please do not do it! I already posted my advise - Dispose of the packs, purchase new and start over. You should have much better luck with the new packs since you "learned the hard way" with the...
  17. Thread: Lipo wont charge

    by Jakey
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    Your packs are permanently damaged and it is best...

    Your packs are permanently damaged and it is best to dispose of them and start over. Safety first!
  18. Yes, as dacaur noted more punch will be...

    Yes, as dacaur noted more punch will be available, but overall handling will suffer due to the weight of the second battery pack.
  19. Thread: Batteries

    by Jakey
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    You can find them readily on Ebay. Just do a...

    You can find them readily on Ebay. Just do a search for Low Voltage Alarms. You should be able to find them for under $5.
  20. Thread: Batteries

    by Jakey
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    You mean a Low Voltage Alarm, right? A Low...

    You mean a Low Voltage Alarm, right?

    A Low Voltage Alarm is another tool to use to help avoid over discharging your LiPo packs and yes they are worth every penny. Try to find one that is...
  21. Thread: Batteries

    by Jakey
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    3,652

    Actully you have part of this post backwards. ...

    Actully you have part of this post backwards.

    Nimh absolutely cannot handle being over-charged. Also, they do not like to be over-discharged. Either will permanently damaged the cells. Nimh...
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    Thank you!

    Thank you!
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    Calling names does not help your case in any way....

    Calling names does not help your case in any way. Also, I have a thought the extreme failures you noted in other products were most likely due to the battery packs being over-charged or...
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    That's right, 1, 2 or 3 and the first two are...

    That's right, 1, 2 or 3 and the first two are 100% controlled by the user. This means any failures associated with the first two are end user created. That's right, the user causes failures which...
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    If a person is repetitively puffing quality LiPo...

    If a person is repetitively puffing quality LiPo packs in spite of using a quality charger, there remains three likely possibilities. 1. The packs are being seriously over-discharged. 2. The...
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