Bluesea ACR vs CTEK D250SA - Ram Promaster Forum
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post #1 of 10 Old 05-17-2019, 02:07 PM Thread Starter
gringobombero
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Bluesea ACR vs CTEK D250SA

Hello all, just about to order a bunch of stuff and one decision I have to make is about battery isolator type devices. As many will already be aware, the Bluesea ACR is a very popular device for this application. However I've become aware of the CTEK D250SA. This seems to serve a similar purpose but has a bit of 'smart' technology regarding bulk/absorption/float states of charge which the Bluesea lacks if I'm reading things right. The CTEK has a built in MPPT controller providing up to 20A. The Bluesea has the manual override switch feature however. Anyone care to comment or have experience with the CTEK vs the Bluesea?
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post #2 of 10 Old 05-17-2019, 03:16 PM Thread Starter
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Actually on further investigation of the CTEK manual, it has a max input voltage of 23v. So given my single 300w, 60 cell panel, with max output of 37v it's a no go.
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post #3 of 10 Old 05-17-2019, 05:08 PM
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Look at the Kisae DC to DC charger. It will do both solar and charging from starting battery. However you'd be limited to 50amps total which depending on the size of your battery bank, might work fine:

http://www.kisaepower.com/products/b...odel-dmt-1250/

I have a similar model (pretty much the same, only rebranded) and I'm only using it for charging from my starting battery (not using the mppt) and it works pretty well. Shuts off automatically when the voltage of the starting battery drops. And it'll support your higher voltage panel: PV Input Voltage Range 14.5 - 45V

Manual: https://www.donrowe.com/v/vspfiles/p...ners_guide.pdf
Spec Sheet: https://www.donrowe.com/v/vspfiles/p...spec_sheet.pdf

Current caretaker of the Backroader 159" wb
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post #4 of 10 Old 05-17-2019, 10:18 PM Thread Starter
gringobombero
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Quote:
Originally Posted by nebulight View Post
Look at the Kisae DC to DC charger. It will do both solar and charging from starting battery. However you'd be limited to 50amps total which depending on the size of your battery bank, might work fine:

http://www.kisaepower.com/products/b...odel-dmt-1250/

I have a similar model (pretty much the same, only rebranded) and I'm only using it for charging from my starting battery (not using the mppt) and it works pretty well. Shuts off automatically when the voltage of the starting battery drops. And it'll support your higher voltage panel: PV Input Voltage Range 14.5 - 45V

Manual: https://www.donrowe.com/v/vspfiles/p...ners_guide.pdf
Spec Sheet: https://www.donrowe.com/v/vspfiles/p...spec_sheet.pdf
Thanks for the reply. That device looks interesting. I'm thinking the integrated MPPT controller makes for some economy and I would hope less compatibility issues with separate devices.
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post #5 of 10 Old 05-17-2019, 10:25 PM
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What about the Victron cyrix ?
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post #6 of 10 Old 05-17-2019, 10:26 PM
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We are a Kisae dealer and stock the DMT1250. Please call Kim for pricing and to order one if you like.


All the best,
Hein
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post #7 of 10 Old 05-18-2019, 03:23 PM Thread Starter
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Thanks Hein, I'm certainly happy with the Maxxfan adaptor plate I got from you. I have a tiny leak somewhere but I'm sure I'll find it. Must have missed a spot with caulk I believe.
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post #8 of 10 Old 05-18-2019, 11:54 PM
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I'm very happy with my BlueSea ACR. I have mine on an independant cutoff switch and keep it disconnected most of the time (I also have 360w of solar to use) but do use the ACR when running high drain items like an induction burner or electric water kettle. So far it's been flawless.

2015 159" Gas Promaster (RV Build in Progress)
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post #9 of 10 Old 05-19-2019, 12:40 AM
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Quote:
Originally Posted by gringobombero View Post
Thanks Hein, I'm certainly happy with the Maxxfan adaptor plate I got from you. I have a tiny leak somewhere but I'm sure I'll find it. Must have missed a spot with caulk I believe.

Have you applied lap sealant over the vent flange, onto and down the sides of the adapter and onto the roof? 3M 4412N extreme sealant tape also works great and is easy to apply.


All the best,
Hein
DIYvan
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post #10 of 10 Old 05-19-2019, 10:33 AM Thread Starter
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Quote:
Originally Posted by Hein View Post
Have you applied lap sealant over the vent flange, onto and down the sides of the adapter and onto the roof? 3M 4412N extreme sealant tape also works great and is easy to apply.


All the best,
Hein
DIYvan
I followed the directions provided with the adaptor. I must have missed a spot or something. When our weather finally dries out up here in Calgary, I'll get up there and have a close look at it. My ceiling is still open except for polyiso and great stuff in the area. So I've got good access from both sides. Like I say, very happy with that adaptor plate. Made the Maxxfan install a breeze.
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