Portable lithium battery charger

DylanS

DylanS

Gorilla Smasher
Location
Lebanon Pa
I was wondering if any of you have come across a battery bank battery charger that I would be able to take to the lake when I run my total loss so I can charge my lithium battery halfway thru the day without having to fire up a generator.
I have a second battery I take along but pulling the battery out to replace it is a borderline religious experience.

Couldn’t find anything like that on NOCO’s page but maybe one of you knows about something I don’t. Thanks!
 
B

Batteryman

Location
Oregon
hmm I mean you could always use something like a jackery with say a 2A Noco charger but ideally want something that would do DC to DC.

I wonder if any RC car battery chargers would work as a lot of them run off of DC. I have one that has a PB 12v charge mode and runs off DC.
 
DylanS

DylanS

Gorilla Smasher
Location
Lebanon Pa
Batteryman said:
hmm I mean you could always use something like a jackery with say a 2A Noco charger but ideally want something that would do DC to DC.

I wonder if any RC car battery chargers would work as a lot of them run off of DC. I have one that has a PB 12v charge mode and runs off DC.
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Thanks Batteryman I will have to look into that.

I believe the noco genius 5 max draw is 75w.
the smallest jackery is about 290wH so if you do the math for DC to AC loss I think I could run the charger at its peak for about 3 hours.

I’m thinking I’ll go that route unless I can find a DC to DC charger like you mentioned.
 
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Myself

Myself

manic mechanic
Location
Twin Lakes AR
How do you get to the lake? A vehicle? Why not just buy a $35 inverter from Wal-Mart, hook it to your car battery, and plug in your regular charger?
 
bird

bird

walking on water
Site Supporter
Location
La Crosse, WI on the BIG River
the NOCO batteries are LiFe, but they have intelligence built in... Do you even need a special charger?

My WPS/Firepower battery can charge up in 7 minutes or less at 20 amps with a standard deep cycle battery charger. The NOCO says it can take 21 amps max.
 
Harbor

Harbor

Location
Stockton
Myself said:
How do you get to the lake? A vehicle? Why not just buy a $35 inverter from Wal-Mart, hook it to your car battery, and plug in your regular charger?
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I use this ^^^ method, but I also bring a extra car battery to charge at the ski

I use it outside my tent to charge the kids phones and stuff too… wife likes it…
 
DylanS

DylanS

Gorilla Smasher
Location
Lebanon Pa
Myself said:
How do you get to the lake? A vehicle? Why not just buy a $35 inverter from Wal-Mart, hook it to your car battery, and plug in your regular charger?
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Both places I typically ride I’m parked very far from the water side. One place has outlets about 40’ from the water but then I’m wrapping an extension cord around my pole and the coast guard generally frowns upon that haha.
 
DylanS

DylanS

Gorilla Smasher
Location
Lebanon Pa
bird said:
the NOCO batteries are LiFe, but they have intelligence built in... Do you even need a special charger?

My WPS/Firepower battery can charge up in 7 minutes or less at 20 amps with a standard deep cycle battery charger. The NOCO says it can take 21 amps max.
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You can use whatever charger I just picked up the noco charger because it’s charge times on the nlp16 are stupid fast.
The REAL issue here is that I just suck ass and I’m constantly starting my ski after bad landings. If I’d be more consistent I wouldn’t have to charge my battery :)
 
Quinc

Quinc

Buy a Superjet
Location
California
What battery are you running? Can you fit a larger/high AH battery? This one should last you about a month between charges:
 
CD155MX

CD155MX

Squirrel!!!
Location
Alta Loma, CA
If you have a few spare garage tool or yard tool batteries, you could use that as a source of power with one of their inverters to plug your charger into. Not exactly a DC to DC solution, but I've been using the Ego version with great success for charge kids Stacyc bikes when out camping.

Couple examples:
egopowerplus.com

Power+ Nexus Escape (150W Power Inverter)

Built tough with a 120V AC power outlet & 2 USB ports. Use any EGO battery to power the Escape. Battery sold separately.
egopowerplus.com egopowerplus.com
www.homedepot.com

Milwaukee M18 18-Volt Lithium-Ion 175-Watt Powered Compact Inverter for M18 Batteries (Tool-Only) 2846-20 - The Home Depot

Provide an essential upgrade to your car with the addition of this affordable Milwaukee M LithiumIon Powered Compact Inverter for M.
www.homedepot.com

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DylanS

DylanS

Gorilla Smasher
Location
Lebanon Pa
CD155MX said:
If you have a few spare garage tool or yard tool batteries, you could use that as a source of power with one of their inverters to plug your charger into. Not exactly a DC to DC solution, but I've been using the Ego version with great success for charge kids Stacyc bikes when out camping.

Couple examples:
egopowerplus.com

Power+ Nexus Escape (150W Power Inverter)

Built tough with a 120V AC power outlet & 2 USB ports. Use any EGO battery to power the Escape. Battery sold separately.
egopowerplus.com egopowerplus.com
www.homedepot.com

Milwaukee M18 18-Volt Lithium-Ion 175-Watt Powered Compact Inverter for M18 Batteries (Tool-Only) 2846-20 - The Home Depot

Provide an essential upgrade to your car with the addition of this affordable Milwaukee M LithiumIon Powered Compact Inverter for M.
www.homedepot.com

pad1500_2_1.png
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Oh yeah haha I’m an idiot I totally forgot about the milkwakee inverters I think I even have one in the van. Genius dude that’s the ticket me thinks.
Maybe I can even convert the ski to run on Milwaukee batteries…
Thanks!
 
R

ryanpsd

Location
CA
Wish I saw this sooner, I originally wanted something DC-DC, and may still pursue that some day. But, I'm on team Ryobi here. :D I run an extension on the 12V side to keep the 120VAC away from the water.
 

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bird

bird

walking on water
Site Supporter
Location
La Crosse, WI on the BIG River
ryanpsd said:
Wish I saw this sooner, I originally wanted something DC-DC, and may still pursue that some day. But, I'm on team Ryobi here. :D I run an extension on the 12V side to keep the 120VAC away from the water.
Click to expand...
DC over long distances can have significant voltage drop. Have you measured the 12 volt output voltage at end of the line? A lower voltage will take longer to charge the battery.
 
R

ryanpsd

Location
CA
bird said:
DC over long distances can have significant voltage drop. Have you measured the 12 volt output voltage at end of the line? A lower voltage will take longer to charge the battery.
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Absolutely... I thought about that before, but, no I haven't actually measured the voltage. It's only a 3 amp charger, and once it's in absorption the current tapers which should also reduce voltage drop. I'm in no hurry. Even if it doesn't reach full charge at the lake, she gets a full charge back at home. Depending on situation I may not use the extension, either, it's been working well for Zeel with total loss. Deka ETX16L.
 
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