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Thread: Using 20v Li-ion Dewalt batteries

  1. #1
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    Default Using 20v Li-ion Dewalt batteries


    If I am powering a Garmin Lvs 32 with a 8.0 ah battery how long can i hope to have good power?

    Same question for a Garmin 9sv?

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    Figure around 4 & be safe.

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    Quote Originally Posted by Les Young View Post
    Figure around 4 & be safe.
    Alright I'll order 4 batteries. My trips last about 5 hours. Thanks.



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    At full power the LVS32 us using 58 watts. At 20 volts that's a hair under 3 amps. This equates to 2hrs and 40 min.
    The 8ah are like 2lbs each right? Why would you purchase 4 of those, at $150 each instead of just getting a 50AH 12 volt that is just 2.5lbs more (11.5lbs) and gives you another 18ah? and at a cost of just $150 for the battery? Then when the first set runs out during the day you have to change batteries. Personally, I'd like to use/carry a single 12-volt 50ah as opposed to 4 of the 8AH batteries.
    Then you'll need 4 chargers or change a single as each completes its charge.
    Likes blueball, justinp61, grizwilson LIKED above post

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    I use a 4ah Ryobi and I get about 4 hours.

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    Quote Originally Posted by MDCrappie View Post
    At full power the LVS32 us using 58 watts. At 20 volts that's a hair under 3 amps. This equates to 2hrs and 40 min.
    The 8ah are like 2lbs each right? Why would you purchase 4 of those, at $150 each instead of just getting a 50AH 12 volt that is just 2.5lbs more (11.5lbs) and gives you another 18ah? and at a cost of just $150 for the battery? Then when the first set runs out during the day you have to change batteries. Personally, I'd like to use/carry a single 12-volt 50ah as opposed to 4 of the 8AH batteries.
    Then you'll need 4 chargers or change a single as each completes its charge.
    Weight and price are way off

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    Quote Originally Posted by catchNreeleaze View Post
    Weight and price are way off

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    Weights range from 11-15lbs, there are a few that are under $100. For that price I would take a chance vs using tool batteries.

  8. #8
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    I don't know about Dewalt batteries, but I was able to buy an adapter for the Ryobi batteries. Just Google Ryobi adapter

  9. #9
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    I have 6.5 ah batteries in spades for dewalts. I did order some 8.0 ah batteries at less than 20$ a piece. Plus a dual charger that will be mounted on the boat and plugged into the 900w inverter that is already on the boat. I also will have the abilty to switch wires and put it on the boat battery at any time. Name:  Screenshot_20241014-033038_eBay.jpg
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  10. #10
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    Quote Originally Posted by catchNreeleaze View Post
    Weight and price are way off

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    The weights for the Dewalt? Or the 50AH? I'm basing the Dewalt on spec I've found from Authorized dealers. For the 50AH I am basing it of personal experience with a TimeUSB battery I bought.

    Below I see you bought DEWALT 8AH for $20 each? Authentic DEWALT? If so then they are stolen. My guess is you are talking knock-offs.

    My last comment..................Good luck

    Edit to add - You might want to consider researching the differences between Li-Ion and Lifepo4. Both the lifespan and safety aspects.

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