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Post by stryker on Oct 1, 2007 9:42:38 GMT 7
shift n lng po kayo sa ni-cad or ni-mh. nkbili po kmi ng mga teammates ko sa bacnotan ng Intellect Ni-MH 9.6v 3600mah na batt w/c we are using now. alam ko po na kaya lipoly ang gamit ng karamihan kc habol natin is ROF, pero baka magulat po kayo kung sasabihin namin sa inyo na mas mabilis ROF ng bateryang ito, asi sir gunslinger, he can attest to that. charging time is almost the same as a lipoly using TLP TL-15 charger, sometimes even faster. only downside is mahal charger na to, costs arnd 4-5k. pero sulit po kc may digital display sya tapos may automatic discharging at charging sya, auto switching din between nicad at nimh and 220v or 12v car batt. u wont need to worry abt overcharging coz it's also auto. hey waitaminit, advertising na to a, hehehehe.... hope this helps...
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Post by nightcrawler777 on Oct 1, 2007 9:49:18 GMT 7
sir wag na po kayo mag lipoly. gumamit na lang po kayo ng ni-mh or nicad. if you are intersted text me at 09163855229, ill give you a nice price sa nicad or ni-mh
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Post by 2one on Oct 1, 2007 9:51:08 GMT 7
Charging considerations The amount of time it takes to charge the battery, the length of time a device will operate between charging cycles, and the number of charging cycles or usable life of a battery play a key role in the user's perception of the quality of a product. All of these factors are interrelated. Clearly, designers must carefully consider all of these issues before selecting the size and type of battery for their application.
Battery capacity will be driven by the system's power requirements. The battery capacity the designer eventually selects dictates the length of time it takes to charge. Most battery manufacturers recommend that their products are charged at a rate of 0.7 to 1 times the capacity (C) or size of the battery cell, where C represents the battery capacity in ampere-hours. For example, a manufacturer of a 1,000mA/hour battery might require the battery to be charged at a rate no greater than 1A or 1C. If the battery is charged at a greater rate, the battery pack will not necessarily charge any faster, but heat generated due to over-charging will degrade the battery's performance over time and reduce its total number of charge cycles.
Li-ion chargers typically use three different charging modes to ensure optimal performance and safety. The charging process begins with a limited current pre-conditioning or trickle charge mode during the period when the battery is heavily discharged. Most Li-ion / Li-Poly battery manufacturers do not recommend applying a 0.7C to 1C charge rate until the cell voltage of a deeply discharge battery reaches 3V or greater. As an example, a charger for a single-cell Li-ion battery with an operating range of 2.8V to 4.2V would measure the voltage of the battery under charge and, if the cell voltage level was less than 3V, would commence in a trickle charge mode. For most dedicated Li-ion / Li-Poly battery charging ICs, the typical trickle charge mode current level is set to 10 percent of the programmed fast charge mode level.
Once the battery charge voltage reaches the pre-specified threshold for regular fast charging, the charger IC switches to a constant current or fast charge mode, where the charge current increases to the 0.7C to 1C level. The constant current mode stays in effect until the battery cell voltage reaches a second end-of-charge voltage level. At this point, the charger enters a constant voltage mode in which the battery voltage is kept constant, allowing the charge current to gradually taper off. Once the charge current drops below a termination current threshold, the constant voltage charging mode ends and the charge cycle is complete. The end-of-charge termination current level is typically fixed by the charge control IC to a point that is 3 percent to 7 percent of the programmed constant current amplitude.
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Post by stryker on Oct 1, 2007 9:52:35 GMT 7
di ba sir amo?... naks, hehehehe
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Post by phoenix on Oct 8, 2007 19:21:04 GMT 7
mga sirs we had same situation here,di talaga advisable kasama charger,dapat balancer charger use for lipoly,shifty nga lang ang price ranging from 1500 to 2000php.
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