whoopsadaisy
Glendale, AZ
New Member
Joined: 10/02/2008
View Profile
 Offline
|
For my heater I was thinking about adding 3.1A to its operation. The furnace unit is rated to use 6.5A when on. How do I figure out if the 3.1A is a big deal for my setup?
|
bldrbuck
Boulder, Colorado
Senior Member
Joined: 02/11/2001
View Profile
|
restate your question as written it is meaningless.
|
whoopsadaisy
Glendale, AZ
New Member
Joined: 10/02/2008
View Profile
Offline
|
whoopsadaisy wrote:For my heater, I was thinking about adding 3.1A to its operation. The furnace unit is rated to use 6.5A when on. How do I figure out if the 3.1A is a big deal for my setup?
I'm adding 3.1A, is that a big deal?
How do I figure out amp/hrs, if that is the units I need to be looking at.
|
smkettner
Southern California
Senior Member
Joined: 03/21/2005
View Profile
Offline
|
3.1 amps for 10 hours is 31 amp hours. 3.1 x 10 = 31
Big deal or not will depend on how much battery you have.
2001 F150 SuperCrew 5.4 Lariat Offroad 4x4 Tow Package 4.10 Truetrac
2006 Keystone Springdale 249FWBHLS
12K SuperGlide, KGE3000Ti 2.3kw rated 2.6kw max
Frank's voltage booster, Prosine 1800 powered by 4 GC2 batteries
|
bryanl
Reno, NV
Senior Member
Joined: 12/25/2003
View Profile
|
The only solid way to figure out battery consumption is by trial and error.
If you get into loads such as a furnace, you start to deal with its duty cycle and that can vary by 5:1 or more over the range of temperatures normally encountered by most folks in casual camping.
What causes people problems with the 'not enough battery syndrome' are constant loads that run more than the 20 hour rate (5 amps for a typical 100 AH battery). For instance, watching one DVD movie will take just about as much energy as you'd want to take from a typical 60# battery before giving it a charge. If the weather is sub freezing and you like it warm in your RV, then one night will also take about one standard battery's worth of energy. And, if your batteries are outside, then you can reduce that by quite a bit.
You just need to go camping and see what works. Adjust between your lifestyle and your battery bank size so you can have a good time in your RV outings.
Bryan
|
|
|
whoopsadaisy
Glendale, AZ
New Member
Joined: 10/02/2008
View Profile
Offline
|
I've got 2 Trojan 105s.
Trojan spec sheet
|
smkettner
Southern California
Senior Member
Joined: 03/21/2005
View Profile
Offline
|
You have 225 amp hours capacity and about 150 usable amp hours since running the battery flat dead will shorten the life quickly.
|
whoopsadaisy
Glendale, AZ
New Member
Joined: 10/02/2008
View Profile
Offline
|
Is that 225 per battery?
450 total?
|
Wayne Dohnal
Banks, OR.
Senior Member
Joined: 03/09/2003
View Profile
Offline
|
whoopsadaisy wrote:Is that 225 per battery?
450 total? Yes and no. It's 225 AH per battery at 6 volts, so when they're in series you get a total of 225 AH at 12 volts. If you hooked the batteries in parallel you'd have 450 AH at 6 volts.
FYI, the 2 furnaces I've owned have drawn about 7 amps while running.
2009 Fleetwood Icon 24A
LinkPro battery monitor
EU2000i generator
|
wa8yxm
Wherever I happen to park
Senior Member
Joined: 07/04/2006
View Profile
Offline
|
The easiest way is to get something like a LINK-10 (or 20) battery monitor from Xantrex.. It does all the hard work for you.. Just install it and ask it.
However the only way to figure out if 3.1 amp per hour is the average is to sit there with an ammeter and a stop watch.. and be advised that the average will change every night.. So the link-10 is your best bet. or it's equal from another company.
Nothin adds excitment like something that is none of your business
Kenwood TS-2000 housed in a 2005 Damon Intruder 377
|
|
|
