Posted: 6/25/2026 12:47:42 AM EDT
| I am in the process of building a moble water pack, basicly a 5 gal specter water jug mounted on Alice Pack frame. I plan to will the can with a Seaflp 33 series 12v water pump and hopefully one of these battery packs. What I need help with is what kind of wire and connector should I run between the 2. The pump has a 8 amp draw I believe, so I don't think the USB-C port will be able to handle it. |
why, oh why GOD WAS I BORN IN CALIFORNIA..
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How much distance between the battery pack and the pump? are you going to be operating in hot areas? For connecting the two I'd absolutely use Anderson Powerpoles. Also, do good crimps, use marine grade clear adhesive heat shrink tube. |
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I wouldn't use one of those power packs. Just get yourself a LiFePo4 battery with a charger. This one is 10 amp hrs at 12v and comes with a charger, but you can buy them in all sorts of sizes. 
The size you want will depend upon how long you want to run the pump so you will need to calculate how many amps the pump pulls and the required run time to decide on a specific battery. For a 5 gallon jug you won't need a whole lot of battery capacity to drain it though. |
It’s better to keep your mouth shut and appear stupid than open it and remove all doubt.
We use the Shurflo on demand pumps for adding pressure in a lot of place in our water grid.  Here is one of the booster pumps in a metal box that we mounted on a wall. Power from a couple 12v panels comes into a C40 charge controller to a 12v battery which goes to the Shurflo pump. I would add a small switch to anything your looking at doing, while they are typically "on demand" they will often try to pull here and there. With the switch when it's off it's off. We have a couple of similar setups- one pushing from another well and tank- solar submersible and one in our greenhouse pushing from the rainwater collection tank.  Our greenhouse is tied into our normal water grid but also has a 500 gallon tank collecting rainwater off the roof of it. This pump pressurizes the water from that tank for use in the greenhouse OR can be pumped into our water grid if need be. Rainwater is principally just used for the animals, gardens, livestock, etc. This is kept separate from drinking water from the wells that goes to the house. If noise is an issue, make sure you install those rubber feet correctly, even then it will be somewhat loud when pulling, insulate/sound deaden as you can- the other reason I used the metal box with the foam in the first pic. I would upsize your panel and battery just because. Even a small 12v battery for lawnmower works. We liked C40 charge controllers and have a few extra from early days off grid so we stuck with them, very simple to use. I may add an accumulator tank to one of these to see if that changes anything, I've heard they help a bit. |
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In business since 1992- Over 30 Years in business- Thank you for your business!
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I assume that you won't have any kind of accumulator tank. I think that pump is meant to use one. If you just have a hose and a valve, the pump will probably give you a high pressure blast initially, then turn on and off constantly when you're drawing water. This is what I'm talking about... https://www.amazon.com/s?k=RV+water+pressure+tank&crid=23AYOT02CS5YG&sprefix=rv+water+pressure+tank%2Caps%2C201&ref=nb_sb_noss_1 |
9 lives - 9 pellets... Coincidence?
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These little flexible panels are nice, we use them for a lot of small solar around the homestead- Eco worthy flexible solar panels |
www.jrhenterprises.com
In business since 1992- Over 30 Years in business- Thank you for your business!
Quickest ways to contact us-
912.375.1480
[email protected]
In business since 1992- Over 30 Years in business- Thank you for your business!
Quickest ways to contact us-
912.375.1480
[email protected]
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Originally Posted By czechsix: How much distance between the battery pack and the pump? are you going to be operating in hot areas? For connecting the two I'd absolutely use Anderson Powerpoles. Also, do good crimps, use marine grade clear adhesive heat shrink tube. It's all going to be mounted together on a backpack. And yes, hot as hell as I live in the desert. |
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Originally Posted By BFskinner: I wouldn't use one of those power packs. Just get yourself a LiFePo4 battery with a charger. This one is 10 amp hrs at 12v and comes with a charger, but you can buy them in all sorts of sizes. www.amazon.com/dp/B0G2RXPPL1 The size you want will depend upon how long you want to run the pump so you will need to calculate how many amps the pump pulls and the required run time to decide on a specific battery. For a 5 gallon jug you won't need a whole lot of battery capacity to drain it though. I want the smallest battery I can find. The plans is to use it to fill this 5 gal water can and maybe a few others at one time. |
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Originally Posted By ske714: I assume that you won't have any kind of accumulator tank. I think that pump is meant to use one. If you just have a hose and a valve, the pump will probably give you a high pressure blast initially, then turn on and off constantly when you're drawing water. This is what I'm talking about... https://www.amazon.com/s?k=RV+water+pressure+tank&crid=23AYOT02CS5YG&sprefix=rv+water+pressure+tank%2Caps%2C201&ref=nb_sb_noss_1 Ya It does not. It's a pump I got froma friend who ended up not using it for his trailer. I guess I can try it without a tank and see how bad it is. It shouldn't take more then a few minutes to fill the can I hope. |
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I recently built a solar battery bank as a float for solar to charging and then reused it for emergency pump duty also, very happy with it. Used all 10ga for the primary power from batt to terminal blocks and switch then 14ga for smaller items. +1 for powerpole connectors Worked out great with a little $33 12.8v 15ah lifepo4 batt from amazon. Note this is a 1/4hp pump pushing a legit 1000 gal/hr. If the watt rating are to be believed it would run this pump for about an hour Attached File Heres the batt module - powerpole in from solar, usb and 12v out Attached File Attached File Attached File Inside.. |