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11-18-2018, 09:28 AM
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#1
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Senior Member
Official iRV2 Sponsor
Join Date: May 2011
Posts: 8,305
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Cool new device for off-grid electricity
I happen to own a Li-battery powered, self propelled lawn mower that I use at our winter RV site in south TX. It features a massive 7.5 Ah battery.
The company that makes it just announced a 150W inverter that works with any of its batteries that provides 110V power while you're not connected to the grid. I know that there are other similar Li-battery inverters sold, but I'm not sure that many other people are using as large a battery. It's rated at 450 Wh which means that it could power my 40" Samsung TV for ~8-10 hours.
Here's a link to the inverter (price doesn't include battery). Home Depot wants $358 for the 7.5 Ah (450 Wh) battery: https://egopowerplus.com/nexus-escap...Mt2_Ug4jFaBLy0
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Joel (AKA docj)--
RV Technology Specialist
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11-18-2018, 10:32 AM
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#2
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,578
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WOW! That's awesome!
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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11-18-2018, 11:53 AM
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#3
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Senior Member
Join Date: Jan 2017
Location: Titusville, FL
Posts: 5,158
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Do lithium batteries require a different inverter design than the ones used on lead acid batteries?
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When seconds count, the police are only minutes away.
2023 Grand Design 2600RB, 2022 F-350 King Ranch tow vehicle, Titusville, FL when not on the road
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11-18-2018, 12:03 PM
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#4
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Senior Member
Winnebago Owners Club Nor'easters Club Freightliner Owners Club
Join Date: Feb 2008
Location: Hometown is Schenectady, NY
Posts: 639
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Quote:
Originally Posted by hohenwald48
Do lithium batteries require a different inverter design than the ones used on lead acid batteries?
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Lithium needs a certain charge rate so any inverter charger is ok if it can be adjusted to the lithium requirements. If it cannot then you'd have to upgrade the inverter charger.
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Ginny & Eric - Full Time 4/14/12 - Our Blog "Walk About With Wheels"
2004 Winnebago Vectra 40AD - 350 Cummins ISC; Toad 2012 Wrangler 6 speed
SKP, WIT, FMCA, FCOC, GoodSam, Cummins Power Club
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11-18-2018, 12:28 PM
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#5
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Community Moderator
Monaco Owners Club
Join Date: Jul 2016
Location: Central, Arkansas
Posts: 11,202
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Quote:
Originally Posted by lajuene
Lithium needs a certain charge rate so any inverter charger is ok if it can be adjusted to the lithium requirements. If it cannot then you'd have to upgrade the inverter charger.
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This is only an inverter not a charger.
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2004 Beaver Monterey Laguna IV
Cummins ISC 350HP Allison 3000 6 speed
2020 Chevy Equinox Premier 2.0t 9 speed AWD
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11-18-2018, 12:29 PM
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#6
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Community Moderator
Monaco Owners Club
Join Date: Jul 2016
Location: Central, Arkansas
Posts: 11,202
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Quote:
Originally Posted by hohenwald48
Do lithium batteries require a different inverter design than the ones used on lead acid batteries?
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No but this one is designed to mount to the special batteries made by them. It doesn't appear to have a way to connect with anything else.
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2004 Beaver Monterey Laguna IV
Cummins ISC 350HP Allison 3000 6 speed
2020 Chevy Equinox Premier 2.0t 9 speed AWD
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11-18-2018, 01:04 PM
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#7
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Senior Member
Winnebago Owners Club Nor'easters Club Freightliner Owners Club
Join Date: Feb 2008
Location: Hometown is Schenectady, NY
Posts: 639
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Quote:
Originally Posted by spdracr39
This is only an inverter not a charger.
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Oh, then it shouldn't matter
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Ginny & Eric - Full Time 4/14/12 - Our Blog "Walk About With Wheels"
2004 Winnebago Vectra 40AD - 350 Cummins ISC; Toad 2012 Wrangler 6 speed
SKP, WIT, FMCA, FCOC, GoodSam, Cummins Power Club
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11-18-2018, 01:52 PM
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#8
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Senior Member
Join Date: Jan 2017
Location: Titusville, FL
Posts: 5,158
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Thanks all.
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When seconds count, the police are only minutes away.
2023 Grand Design 2600RB, 2022 F-350 King Ranch tow vehicle, Titusville, FL when not on the road
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11-18-2018, 02:11 PM
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#9
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Senior Member
Join Date: Aug 2017
Location: Syracuse Ut.
Posts: 692
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The batteries use are 56 volt, and proprietary connection config so this inverter would only be a good option for those that are using the EGO mowers, trimmers etc. If you have the batteries and chargers already, I would think it a good option for boondocking and running the TV, CPAP machine etc, or even a good backup for you CPAP in the stick and bricks.
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2016 Bighorn 3270RS, 2015 Ram 3500 CTD/ASIN
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11-18-2018, 02:19 PM
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#10
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Community Moderator
Join Date: Aug 2011
Posts: 6,182
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Cool new device for off-grid electricity
This dewalt power station takes 4 batteries and can deliver 1800 watts of AC power from its inverter.
The ego only delivers 150 watts
https://www.dewalt.com/products/gear...arger/dcb1800b
The 1800 Watt Portable Power Station[emoji769] and Simultaneous Battery Charger allows for AC power in remote locations for convenient portable power. Able to run most corded tools, it provides 1800 Watts (15 amps) continuous power and 3600 Watts peak power. The DCB1800B runs on four DEWALT 20V MAX* batteries (including FLEXVOLT), and for high power applications, four 20V MAX* 3.0Ah DEWALT Batteries (DCB200) or higher amp hour are recommended to provide the best results. Not only can the 1800 Watt Portable Power Station[emoji769] power a corded tool remotely, but it also becomes a multi-port simultaneous charger for up to four DEWALT 20V MAX* Batteries (including FLEXVOLT) when plugged into a wall outlet via extension cord (batteries and extension cord sold separately). Compact and lightweight, the 1800 Watt Portable Power Station[emoji769] weighs just 18lbs (without batteries) and is easily portable. Without the need for gas to run, there are no fumes or carbon monoxide emitted from the device. In addition, the 1800 Watt Portable Power Station[emoji769] can be used to provide temporary power in areas where noise is restricted such as a jobsite with strict regulations. With an integrated temperature-controlled cooling fan and heavy-duty roll cage, the Portable Power Station[emoji769] is a durable and convenient power solution for a variety of uses.
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11-18-2018, 04:28 PM
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#11
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Senior Member
Official iRV2 Sponsor
Join Date: May 2011
Posts: 8,305
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Quote:
Originally Posted by pasdad1
This dewalt power station takes 4 batteries and can deliver 1800 watts of AC power from its inverter.
The ego only delivers 150 watts
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Unless you're planning on powering your A/C or your microwave, what matters most is how much energy is stored in the batteries. Interestingly, the Dewalt website completely omits any mention of the total energy stored in the four 20V batteries needed for this unit. However, in the fine print it does say that each of the batteries is a 4Ah unit. So with 4 batteries you would have ~16Ah of stored energy at 20V = 320Wh
By comparison, the largest Ego battery stores 7.5Ah at 56V. That's 420Wh of stored energy. (Stored energy = Current x Voltage x time)
Therefore, the single Ego battery has more stored energy than the four batteries in the DeWalt. A key difference is that the DeWalt is designed to power large tools that draw lots of current for relatively short periods of time. The Ego is designed to output its 150 watts for many hours.
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Joel (AKA docj)--
RV Technology Specialist
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11-19-2018, 07:39 AM
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#12
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Community Moderator
Join Date: Aug 2011
Posts: 6,182
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Quote:
Originally Posted by docj
Unless you're planning on powering your A/C or your microwave, what matters most is how much energy is stored in the batteries. Interestingly, the Dewalt website completely omits any mention of the total energy stored in the four 20V batteries needed for this unit. However, in the fine print it does say that each of the batteries is a 4Ah unit. So with 4 batteries you would have ~16Ah of stored energy at 20V = 320Wh
By comparison, the largest Ego battery stores 7.5Ah at 56V. That's 420Wh of stored energy. (Stored energy = Current x Voltage x time)
Therefore, the single Ego battery has more stored energy than the four batteries in the DeWalt. A key difference is that the DeWalt is designed to power large tools that draw lots of current for relatively short periods of time. The Ego is designed to output its 150 watts for many hours.
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Dewalt has many more batteries than just the 4Ah. In the “flex volt” series (which can work with 20v or 60v tools) they have a 9Ah and a 12 Ah. If you used 4 of the 12 Ah batteries you would have 960 Wh of stored energy.
I think the measly 150 watt output of the ego is the limiting factor in making the tool useful. In boondocking or off-grid situations I would think being able to connect just about any electrical appliance would be a great feature.
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11-19-2018, 05:12 PM
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#13
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Senior Member
Official iRV2 Sponsor
Join Date: May 2011
Posts: 8,305
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Quote:
Originally Posted by pasdad1
I think the measly 150 watt output of the ego is the limiting factor in making the tool useful. In boondocking or off-grid situations I would think being able to connect just about any electrical appliance would be a great feature.
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I don't have any personal stake in the Ego device. I was simply posting information for the IRV2 community. You are free to purchase whatever inverter you choose.
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Joel (AKA docj)--
RV Technology Specialist
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11-21-2018, 06:13 AM
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#14
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Senior Member
Join Date: Aug 2013
Location: Denver
Posts: 818
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You could power a tv with 150 Watts but not much else. Why?
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2017 WGO Fuse
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