Don't Let Your Lithium Battery DIE! (Try This) | Power Queen Battery Monitor | LiFePO4 | AGM | NMC
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- Опубліковано 26 сер 2024
- Lithium batteries require a different type of monitoring to determine the remaining capacity, this applies to both NMC and LiFePO4 (LFP) batteries. This shunt style battery monitor goes inline with all of the current going into and out of the battery to tell the operator how much available energy is left. This is very important! We walk through a quick understanding of the monitor and a quick setup to see it in action. Check out the links below!
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What do you think about running a battery monitor versus buying a battery with built-in Bluetooth connectivity?
13.3 volts is not full charge on lithium. 14 volts to 14.6 volts depending on manufacturer specs.
@@sciglassblower over the dozens of LiFePO4 batteries, none of them have had a resting voltage of over 13.3-13.4. 14.6 is the charging voltage, but not the resting voltage of a fully charged battery.
@@goodmanfishing You are correct, but your meter needs to know when the battery is full. Your lithium charging system should be charging the lithium battery to 14.2 or so. The meter should be set to 14v to know when the battery is actually full. If your float is 14v or 14.2, which is recommended by trusted sources, your meter will not start counting down the amp hours until you drop below 14v and have current coming from the batteries. If you have your float set to 13.7v, which some chargers do, the meter will still not start showing reduced SOC until you start taking amperage out of the battery. Either way you should always be charging lithium to 14v+ and the meter should be set to 14v so it knows when the batteries are full.
Hi are you finding the monitor is working ok. Quick question I’ve got a caravan an on the minus side of the battery is the van black lead inverter lead solar lead .. do I just take them from the battery and connect to the shunt and then the shunt to the battery.
What's the box you put the shunt display in?
@@robh7378 it's a 3D printed holder
@@goodmanfishing Ah, Okay. Looked cool and was hoping it was from Amazon or someplace I could get it. Thank you.
is that 34 hours............. or min? with everything on? I'm hoping hours. cool gadget!
That would be hours. Those graphs don't pull very much and aren't transmitting sonar. Run times will vary!
Does this monitor two 100 Ah LiFePO4 wired in series for a 24 V trolling motor? Did you say that the on board battery charger must only be hooked to the shunt only, not the battery directly? Do you use an onboard battery charger that charges all types of batteries, even lead acid?
I would expect a shunt on each battery if you plan on charging them with a two bank charger.
I use an on-board charger that has a setting for lead, AGM or lithium.
The BMS would shut the battery down before it harmed it without the shunt correct? Is it absolutely necessary to run a shunt for a trolling motor setup?
Yes the BMS will protect itself, this is much like a gas gauge to see how much further you can go.
Running a shunt and monitor is not required. But if you want to know remaining capacity on a lithium battery, you must use a shunt or Hall effect setup. A volt gauge or meter isn't sufficient
@@goodmanfishing thank you for the quick reply! I just got the 100ah PQ gonna install it on a 55lb terrova 12v today. Definitely gonna look into the shunts to see how much life is left. I wasn’t 100% sure if the BMS would shut it down before harm was done. Thanks again!!!
@@treebuster93 no problem !
What charger do you recommend for the power queen?
Something like this 10a would work well. If you want something permanently mounted, there's a few other options
amzn.to/4cLE59r
does this come wit all necessary cables?
i dont think it does looking at their website.
i have 3 power queen premium 2 batteries in parallel and i need something like this.
also, would i need just one shunt or 3?
It will come with everything you need other than the main cables to and from the shunt.
It’s preferred to have a shunt on each battery, but it will work with a series configuration
I just got one of these. I setup the AH etc in the settings. If I turn off this unit( I have it setup on my trolling motor breaker) will i have to re-input my info or will it remember my settings. I'm new to these. There isn't anything saying like to get out of the setup mode. Kinda lost in the manual for setting up correctly. I'm using a 12 volt 100ah li-time lithium.
I would suggest putting the red small wire to the shunt before your breaker. If you typically throw the breaker when you aren't using it, that small red wire will remember your settings.
Ok. So it needs to have power to it all the time?
And yes. I kill my breaker to stop power to the troller motor. .
@@PimpnBass yes, the little red wire should always be hot. 👍
It is right now when the breaker is on. I was afraid it would put a drain on the battery if it was on all the time. Unless it auto shuts off or something when it's not being used by the trolling motor. I really appreciate your info .
@dwaynepippin the monitor draws an extremely low amount of power to stay on.