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04-19-2016, 09:28 PM | #1 (permalink) |
Registered Users
Join Date: Apr 2016
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Help!! Going crazy trying to decide
Hi all,
I have been going back and forth between the iCharger and the PowerLab chargers. I was leaning towards the iCharger until I saw the Bump Controller....now I am going with PowerLab. But, I am having trouble making decisions and am hoping someone with more experience can help shed some light. First, I am debating between 2 PL6s or 1 DPL8x2...I don't see parallel charging anything larger than 6S 22.2V 5000mAh packs...although I don't know for sure, I really don't see anything larger than that. In the intermediate future, I will be mainly be charging 3S 3200mAh 20C packs. Next, I would love to get a case for the charger(s) I select. I was directed to BumpCases.com and see that their case comes with a pair of DPS-1200 supplies. If powered with 120V, it supplies 75A / 1800W. Is that adequate for either the 2 PL6s or 1 DPL8x2? Thank you for the assistance!! -David |
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04-28-2016, 10:17 PM | #2 (permalink) |
Registered Users
Join Date: Sep 2007
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"Adequate" is in the eyes of the user.
Seldom do I use a DPL8 at full capacity. In the shop, I can use up to 2 TDK Lambda 24(28) v dc 65A supplies. Normally, one supply is sufficient. Using two would require two branch circuits, or changing over to 230 V ac input, something I'd rather not have to do. The 230v outlet is on the wrong side of the shop, and was placed there to power a window A/C unit. The inverter generator I sometimes use in the field is up to 2.6kw @125vac. Again, one power supply is enough for my use. I also have a 12v lead acid battery available, but drawing much more than 6 A or so over a long period is about maximum. That would leave the alternator output from my truck as the highest capability 12 v dc current source. The 2.6 kw generator is also often used to power my trailer's heat pump. |
04-29-2016, 08:28 AM | #3 (permalink) | |
Registered Users
Join Date: Sep 2015
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Quote:
That's charging 4x 6S 5000mah packs in about 15 mins. Besides, that's as much power as you can consume from a single 20A 120V outlet circuit, so in order to get more power, you would have to have a 2nd (independent) 20A circuit available wherever you're charging ... not likely to happen, especially at the field or on the road. At home in your shop/garage (or wherever you charge), you can wire a 240V 20A outlet and those same supplies can provide 100A 2400W without any changes. That is more than 2xPL6 (2000W) and very close to the max of the DPL (2688W). As for 2xPL6 vs DPL, probably depends on what you see yourself flying in the future. The trend is definitely toward higher voltages and lower currents for efficiency, so it's likely that existing 6S/12S stuff will more commonly use 7S/14S and 8S/16S setups. So if you plan to fly 700+ size helis or 25%+ size planes, I would steer you toward the DPL. If you're pretty sure you won't need more than 6S, then the difference in power (2000W vs 2688W) is unlikely to be significant. One final factor to consider: for internal discharge, the PL6 will only do 50W whereas the DPL will do 95W per channel. So if you doing much storage charging, and don't plan to do regenerative discharge (to battery or external resistive load), then the DPL will be able to discharge twice as fast. This is handy if you're done flying for the day, but still have a pack fully charged and want to do the right thing and take it back to storage level ... sometimes I need to do that, but typically I just throw it in the bird for a casual "dusk" fly |
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