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Dec 11, 2014, 05:55 PM
Why my landing gears hate me?
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Best field charger for charging two of 6S 5000 mAh Lipos at 2C rate?


Can someone recommend a really good charger that is capable of charging two 6S 5000 mAH lipos concurrently at 2C rate from a car battery?

I also would like all the safety features, ease of use and if possible internal resistance measurements. Good discharge rate (so I can bring fully charged batteries back to storage charge in a reasonable amount of time) also would be nice to have.

Appreciate any suggestions you guys may have.

Thanks.
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Dec 11, 2014, 06:02 PM
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I'd recommend you take a look at the Revolectrix PowerLab 8. The on-line power calculators will let you see everything possible based on your power supply and packs.

http://www.revolectrix.com/Calculators_main.htm
Dec 12, 2014, 12:22 AM
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Reaktor 1000 w 30 amp charger.
Dec 12, 2014, 11:18 AM
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ggcrandall1's Avatar
I second the PowerLab 8 (PL8). http://www.usastore.revolectrix.com/...-EC5-version_2

However since you are to be charging from your automobile you should do some research on the number of charges you can accomplish without damaging the automobile battery. Lead acid batteries do not like deep discharges.

In this case the regenerative discharge feature of the PL8 may prove to be useful. During regenerative discharge the PL8 discharges the LiPo back into the lead acid automobile battery.

You might want to read this too. http://www.tjinguytech.com/charging-how-tos

Glen
Dec 12, 2014, 01:00 PM
Registered User
The Reaktor 1000w( I Charger 306b) also has regenerative discharge and cost a lot less than a PL8,both are very good chargers.Problem I see is one 12v starter battery is not going to cut it for this kind of power,and if you go 2 deep cycle batts in series 24v or an inverter it's going to cost more than the charger.Several chargers can be recommended to do the job but at this power level your biggest problem is power supply.
Dec 12, 2014, 01:32 PM
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ggcrandall1's Avatar
Charging two 6S 5000mAh @2C = 504W.

The PL8 will supply that from a 12V source.

Glen
Dec 12, 2014, 04:30 PM
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If you decide to purchase a Revolectrix PowerLab charger you can use Revolectrix coupon code bisb14 to save 10% on your order when ordering from the Revolectrix.com website.
Dec 12, 2014, 06:07 PM
Why my landing gears hate me?
Thread OP
Thanks everyone for your suggestions. What do you guys think about:

1. Graupner Polaron Ex (another dual charger with 400W/channel)

2. iCharger 308Duo

3. Hyperion EOS 720i Super Duo Balance Charger

4. Hitec X2 - 400 Dual CHarger

Has anyone used anyone of these (especially for field charging) and how do they compare to PL8?
Dec 12, 2014, 07:02 PM
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ggcrandall1's Avatar
Quote:
Originally Posted by Archie2010
Thanks everyone for your suggestions. What do you guys think about:

1. Graupner Polaron Ex (another dual charger with 400W/channel)
2. iCharger 308Duo
3. Hyperion EOS 720i Super Duo Balance Charger
4. Hitec X2 - 400 Dual CHarger

Has anyone used anyone of these (especially for field charging) and how do they compare to PL8?
Archie,

Please provide links when you reference equipment. It saves everyone from having to search and ensures everyone is on the same page.

Glen
Last edited by ggcrandall1; Dec 12, 2014 at 07:10 PM.
Dec 12, 2014, 07:28 PM
Suspended Account
Quote:
Originally Posted by Archie2010
Thanks everyone for your suggestions. What do you guys think about:

1. Graupner Polaron Ex (another dual charger with 400W/channel)

2. iCharger 308Duo

3. Hyperion EOS 720i Super Duo Balance Charger

4. Hitec X2 - 400 Dual CHarger

Has anyone used anyone of these (especially for field charging) and how do they compare to PL8?
I have the Polaron EX and the 400W rating is only achievable with 24V or higher input voltage. At 12V it's limited to 220W which means it's capped at 9A per channel for a 6S battery. It's probably close enough to the 2C charge rating that you're looking for. Also since a car battery is usually around 14V you may get the 2C rating.
Last edited by TheKingPhisher; Dec 12, 2014 at 08:08 PM.
Dec 12, 2014, 07:50 PM
Registered User
Quote:
Originally Posted by Archie2010

Has anyone used anyone of these (especially for field charging) and how do they compare to PL8?
IMHO, when it comes to performance and reliability there is no comparison. My Dual PowerLab 8x2 goes with me to the field every time I go flying.
Dec 13, 2014, 02:50 PM
Why my landing gears hate me?
Thread OP
Glen,
Thanks. I am working from a mobile device but I will post the links as soon as I get back to my desktop machine.
Dec 13, 2014, 02:54 PM
Why my landing gears hate me?
Thread OP
Has anybody used iCharger 308 Duo in the field off of a 12V car battery?

Buddy RC website says not to but when I talked to the very helpful gentleman at Progressive RC, he said it should not be a problem.

Thanks again for all the help.
Dec 13, 2014, 03:17 PM
Registered User
Chargepower at 12,2volts is 610watts (at 58A input current). Just the same, as the PL8.
Dec 13, 2014, 11:26 PM
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Wild Bill's Avatar
I have the original X-2 dual and love it.

Bill
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