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張program card 可以set Lipo cut off 最高每cell3.4v,我用2cell電玩咪6.8v先cut off,我想問會唔會過放

應該唔會~

我都係唔明 ....

原帖由 kai 於 2008-6-22 21:40 發表

                               
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張program card 可以set Lipo cut off 最高每cell3.4v,我用2cell電玩咪6.8v先cut off,我想問會唔會過放

用2cell電玩咪6.8v先cut off,咪無用

所以我先問下有無人知會唔會玩死排電

原帖由 kai 於 2008-6-22 21:40 發表

                               
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張program card 可以set Lipo cut off 最高每cell3.4v,我用2cell電玩咪6.8v先cut off,我想問會唔會過放

唔會.....3.4v 每cell 重係安全, 3.3v以上就ok...

mamba max 個d default setting 係3.0v 每cell, novak default setting 係3.1v 每cell

[ 本帖最後由 kaho0338 於 2008-6-22 22:14 編輯 ]

原帖由 kai 於 2008-6-22 22:03 發表

                               
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所以我先問下有無人知會唔會玩死排電

唔係正常每cell不可少於3.7v咩,3.4v可經,,,,,,,,,,,,,,,,,

um... 看一看
Each cell is rated at 3.7V - This is a NOMINAL Voltage
Each cell can be charged up to 4.2V - This is MAX Voltage.
Charging over 4.2V per cell will cause damage to battery, persons or property.

Discharging.

Our cells are rated by manufacturer to discharge to Maximum of 2.75V per cell under 0.2C load. Discharging to that level at higher rates will shorten the life of the battery or damage it completely as most brushless ESC’s (electronic speed controllers) don’t have an accurate LVC (low voltage cut-off).

A common LVC point is 2.8V–3.0V per cell. This is a SAFE setting for higher discharge rates. Some brushless ESC’s are programmable and can be set up to either point & others are factory pre-set. If you discharge to 2.8V per cell the battery should “rebound” to around 3.15V or more after rest.

http://www.truerc.net/canada/shop/lipo_safety.html

[ 本帖最後由 kaho0338 於 2008-6-22 22:27 編輯 ]

我都好似聽過每cell電不可少於3.7v先安全

還有:
You must check the pack voltage after each flight before re-charging. Do not attempt to charge any pack if the unloaded
individual cell voltages are less than 3.3V.
For example: Do not charge a 2-cell pack if below 6.6V
Do not charge a 3 cell pack if below 9.9V

http://thunderpowerrc.com/PDF/THPSafetyWarnings.pdf

原帖由 kai 於 2008-6-22 22:28 發表

                               
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我都好似聽過每cell電不可少於3.7v先安全

係, 的確d人係今講, 3.7v cut係令排電耐用d及安全d.
不過我覺得3.4v 先 cut 完全冇問題, 大把大廠set 3.0-3.2 先同你cut.

原帖由 kaho0338 於 2008-6-22 22:32 發表

                               
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係, 的確d人係今講, 3.7v cut係令排電耐用d及安全d.
不過我覺得3.4v 先 cut 完全冇問題, 大把大廠set 3.0-3.2 先同你cut.

我想問c hing你本人試過未,我試過低過3.7v死电,thx

3.2v已經ok!!電廠一般報稱,每cell不可低於3.1v,
而3.2v喺你比油果吓會drop volt而cut你電之後會回昇,
我設定3.2v cut-off,收車度有3.6v以上,冇有怕!!!

原帖由 lokaman 於 2008-6-22 23:02 發表

                               
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我想問c hing你本人試過未,我試過低過3.7v死电,thx

我地一班人玩慢爬用2 cells lipo, 次次玩到3.3, 3.4 cut 都未有事....
有d人用novak 3.1先cut 都未有事....

anyway, 大把人用novak GTB, XBR, Goat Crawler Brushless System + lipo 咪又一樣3.1 先cut...又唔見成日有人話有事

Goat Crawler Brushless System:
Voltage Cut-off: 6.25 volts (when Li-Poly Cutoff Circuitry is enabled)
http://www.teamnovak.com/product ... d_system/index.html

XBR/EX SportBrushless Systems:
Voltage Cut-off 6.25 volts (when Li-Poly Cutoff Circuitry is enabled)

http://www.teamnovak.com/products/brushless/ex_systems/index.html

根本 3.4v 先cut 十分安全

甘lrp tc spec有無得set?如果無,系幾v cut呢? thanks

咁如果放電至 3.0V / CELL 呢?
我部乂電機 係咁