lithium battery for livescope question

[70diesel]

I have a regular battery dedicated just for my livescope and 106uhd  but it is only lasting about 5 hours so I think I need to upgrade to a lithium but I'm not sure what size to get. I'm looking at the Dakota lithium and they have a 23ah for just over $200 that seems like it should last over 8 hours a day. The next size up is like $500 which is really out of my price range. How long would the 23ah battery last. From my research the livescope/106 combo is around 3amps. I'd like to get about 10hrs a day out of a battery, do I need to go bigger than 23ah? 

[MN Fisher]

Amps * time = AH used

 

Lithiums can be drawn down to near 0% charge without degrading performance

 

So 3amp draw * 10 hrs = 30AH for a Lithium...add a bit for safety factor or more time

[gulfcaptain]

What wire guage are you running to your livescope? I had power issues with mine but then realized  my run to my buss bar I was using was too small. Moved up to 8guage and all power  issues are now gone. Check your wire size your running first before diving off into lithiums

[MN Fisher]

5 minutes ago, gulfcaptain said:

What wire guage are you running to your livescope?

Also - what's the AH rating of the battery you're using now.

 

If it's a Gel or AGM - multiply that AH by 0.60 to get it's "true" AH. Get below 40% charge on one of those and you start having issues.

[70diesel]

I'm using the factory wires from garmin directly to the battery, I didn't have to add additional wiring. I'm not sure what the AH rating is of my current battery but it's a standard battery, not AGM or Gel.

[MN Fisher]

10 minutes ago, 70diesel said:

I'm not sure what the AH rating is of my current battery but it's a standard battery, not AGM or Gel.

If you know the reserve capacity - you can calculate the AH

(Reserve*60*25)/3600 = AH

[Alex from GA]

You can get a 50 ah lithum for $220 @ amazon.  I've been using one for my trolling motor for several months with good results.

[casts_by_fly]

I have the 30 AH wide from Amped for my Helix 7 and accessory lights on the kayak.  I don't think I've taken it below 75% on an 8 hour day.  Depending on the head unit, Amped says you'll get 8+ hours running a 12" unit plus livescope and 10+ hours on a 9" unit and livescope.  They are out of stock at the moment, but they are $189 and a good battery.

 

https://ampedoutdoors.com/pages/garmin®

[70diesel]

13 hours ago, Alex from GA said:

You can get a 50 ah lithum for $220 @ amazon.  I've been using one for my trolling motor for several months with good results.

Would you mind providing the link to the battery you purchased. I was looking at them on Amazon but was nervous since not a lot of fishing people mention them. 

 

I've been looking at the amped batteries also (30ah) but as you said, it's sitting in a cargo ship that until the other day has been stuck in the mud in the Chesapeake bay, ironically 1 hour from my house.

[Fishingmickey]

On 4/17/2022 at 6:26 PM, 70diesel said:

I have a regular battery dedicated just for my livescope and 106uhd  but it is only lasting about 5 hours so I think I need to upgrade to a lithium but I'm not sure what size to get. I'm looking at the Dakota lithium and they have a 23ah for just over $200 that seems like it should last over 8 hours a day. The next size up is like $500 which is really out of my price range. How long would the 23ah battery last. From my research the livescope/106 combo is around 3amps. I'd like to get about 10hrs a day out of a battery, do I need to go bigger than 23ah? 

I'm running the 23AH Dakota Lithium with my livescope GLS 10 box. I run the 93UHD head with a 17AH FPV battery.  The Dakota runs my livescope all day 10hrs+. I use the separate battery so if my livescope battery drains I still have my 93 UHD working.  

FM

[Choporoz]

19 minutes ago, 70diesel said:

Would you mind providing the link to the battery you purchased. I was looking at them on Amazon but was nervous since not a lot of fishing people mention them. 

I just returned an Amazon sourced Chinese LiFePo (Wokyy).  After four months, it wouldn't take a full charge any more.  I'm looking at Amped or Dakota replacements.