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| RAPOSA-NG uses Lithium-ion Polymer batteries (Li-Po) with 4800mAh and 14.8V. | | [[Image:RAPOSA_Battery.JPG|300px|thumb|Battery used by RAPOSA-NG]] |
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| ==== Battery ====
| | [[RAPOSA-NG]] uses Lithium-ion Polymer batteries (Li-Po) with 4800mAh and 14.8V. |
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| The primary difference between this batteries and other Lithium-ion is that the lithium-salt electrolyte is not held in an organic solvent but in a solid polymer composite such as polyethylene oxide or polyacrylonitrile.
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| Each battery is composed of 4 cells with 2400mAh and 3.7V each, in a 4S2P fashion (two 4 series packs in parallel).
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| [[Image:Raposa_4s2p.jpg|499x174px|4S2P Fashion]]
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| ==== Battery Charger ====
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| [[Image:RAPOSA_BATTERIES.jpg|400px|thumb|How to charge RAPOSA-NG batteries using ULTRAMAT 10]] | |
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| Currently two all-purpose fast chargers from Groupner (ULTRAMAT 10) are used to charge RAPOSA-NG batteries at the Mobile Robots Laboratory (8th floor, North Tower, IST Campus-Alameda).
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| To recharge RAPOSA-NG batteries using ULTRAMAT 10:
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| * Connect the ULTRAMAT 10 power plug to an available power socket;
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| * Connect the battery plug to the ULTRAMAT 10 battery socket;
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| * Press ENTER (the first button from the right) two times.
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| If the ULTRAMAT screen presents the following screen (the current and voltage displayed in this image are irrelevant)
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| [[Image:ULTRAMAT_CRG.jpg]]
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| it means that it is charging. When finished, the ULTRAMAT 10 will beep for a few seconds and the following screen (again, the current and voltage displayed in this image are irrelevant)
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| [[Image:Raposa_END.jpg]]
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| will be presented.
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| For any other information regarding the ULTRAMAT 10 usage, please check this manual (in Dutch, English and French):
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| [http://clubcugnaux.free.fr/Page_notices_techniques/ChargeurGraupnerUltramat10.pdf Battery Charger ULTRAMAT 10 manual]
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| ==== Risks ====
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| This batteries are highly dangerous when used without proprer measures. They can only be charged with appropritate Lithium-ion Polymer chargers and with the correct specifications. Crashes, high temperatures and short circuits can cause explosions. Please be extra carefull when dealing with this batteries.
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| ==== Precautions ====
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| * NO NOT use other chargers to charge the batteries, unless it is a Li-Po charger and it is correctly configured;
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| * Avoid recharging batteries already charged. This can reduce their live expectancy;
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| * Recharge a battery as soon as possible to prevent live damages;
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| * Never leave them recharging without any supervision, as any accident with the battery can cause a fire;
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| * If a battery starts to swell (or is already swollen), STOP USING IT and give them to someone that can thew them away in the proper places;
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| * NEVER trow a battery into the normal garbage.
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| == See Also ==
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| *[[RAPOSA-NG]]
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