cobra cpi 2575 2500 watt 12 volt dc to 120 volt ac power inverter
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The Cobra CPI 2575 is a 12 volt DC to 120 volt AC power inverter with 2500 watts continuous power handling and 5000 Watts peak power. This unit contains a 5 volt USB output, modified sine wave, thermal shutdown, reverse polarity protection, low voltage shutdown, low voltage alarm, 3 grounded AC receptacles, LED volt/watt meter and has remote on/off capability.
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Technical Details
- 2500 W Continuous Power Handling
- 5v USB output
- 3Grounded AC Receptacles
- Thermal Shutdown and Reverse Polarity Protection
- LED volt/watt meter and remoter on/ off capable
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2010-02-07
By Mike Hinson
This is my second try with this inverter and the second one I am returning to Amazon. Regardless of your battery bank and regardless of the cables used, this product is pretty much worthless for one reason. That reason being the Low voltage alarm. On this product it comes on as early as 11.7 volts which is totally unacceptable. 11.7 volts is way to early to be setting off alarms. At that voltage you still have A TON of battery life left before you should even be concerned. The threshold for the alarm is 11.3 +/- 3% which max is 11.669 volts. Both of the inverters I had were on the high end of that scale. The first setup was connected to 3 brand new deep cycle Interstate batteries with 4, 18" long 4 gauge cables running to the inverter (Overkill if anything). The second try was 2 brand new deep cycle 6 volt golf cart batteries with 4, 30" long cables running to the inverter. After the first day of camping the batteries have already drained off into the mid 11 volts and these inverters start sounding alarms and don't stop beeping until you turn them off. The industry standard for low voltage alarms on inverters seems to be 10.5 +/- .5 volts which max would be 11 volts and that is a lot better then 11.7. I returned this inverter and I am purchasing a Vector brand inverter with the best alarm threshold with a max of 10.6 volts before the alarm sounds. However, when these inverters are getting the volts they need with the heavy cables they need they do put out the advertised 2500 watts no problem. Amazon's return policy is amazing by the way.
Update 2/17/10....The Vector inverter even though advertised as 10.6 max for the alarm started sounding it's alarm at 10.97 volts. That inverter was not much better then the Cobra in any aspect but it was a lot more money. So my final verdict is that these are good inverters for a great price with the only downfall being the low voltage alarm coming on way too early.
2010-01-13
By Christopher D. Gualtieri
I purchased this for my semi-truck. The inverter requires 2 sets of 4 awg wire. I soldered my ends first and used heavy duty ends for the battery contacts. The cables are 3'9" long.(Cobra said no more than 4') I tried to overload this inverter with a 6hp shop-vac and could not. The remote for me is a must but the remote is another story. If you are looking for an inverter that will power just about anything, I highly recommend this one. The only reason I did not give it five stars is that the length of the power cables limits where the inverter can be placed. All other aspects of this inverter are very impressive. As a side note, I use this inverter for a microwave in my truck,(among other things)and the modified sine wave is no problem at all.
2009-11-01
By Taz
At first i conected a number 4 cable with large battery clamps to
one end of my bank of eight batterys was not happy at all
wasn't even half that my old 3000 watt was. Wouldnt run,
small air compresser, toster oven, it would run small fridg
and dehumidapher if only pluging one at time.
So after a time i disided to connect it anyway
I made two sets of cables about 3 feet each solderd
some homemade copper ends with a hole to screw one end of
my batterys. then dipping the other end of cable in hot solder
for the inverter side. connected to both ends of my battery bank
To my surprise now it was running all that
my old high end 3000 watt inverter would run. very happy. just hope it will
last for a few years
just wanted to let some of you all know that the inverter needs alot of battery
and both sets of cables to get the best from it
Only a expert that knows what they are doing should connect this inverter!!!
2009-09-12
By Robert Gilcrease (Hemphill, Texas United States)
Would not start a very small A/C unit. Then after powering a light buld and fan for two day just started beeping. Returned received money back. Amazon is a great dealer.
2009-06-24
By A. Ostrander
To all the people who have issues in getting full or high wattage out of this or any other unit: you MUST have thick (#4) and short (3-4ft) 12v cables to your battery bank. Otherwise the inverter will be starved for current and cause the "low voltage protection" to kick in. Make sure your battery/ bank are up to the task as well.
This unit works great for me. I tested it with combination's of differing equipment (electric chainsaw, power saw, A/C unit, refrigerator, electric heating unit). No problems for me. Do your homework before giving out 1 star reviews people...
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