Catalina 34

General Activities => Main Message Board => Topic started by: PAUL T. on February 19, 2005, 03:37:53 PM

Title: PORTABLE JUMP START
Post by: PAUL T. on February 19, 2005, 03:37:53 PM
Hi All......... I am about to purchase one of those jump start battery packs. The one I was looking at is rated at 450 amps immediate and 300 amps continuous. Is this enough to start our venerable 23 horse engines? Thanx in advance.............PAUL
Title: PORTABLE JUMP START
Post by: Ted Pounds on February 19, 2005, 06:40:50 PM
Paul,

If it'll jump start a car it will jump start our boats.  However there are a couple of things to consider.  If you hook it up in parallel to a really dead battery bank the battery bank will suck a lot of juice out of the jump start pack; and maybe not leave enough to start the engine.  If you hook it up directly to the engine then you must connect the battery bank BEFORE disconnecting the jump start pack.  Otherwise you'll have no load on the alternator for a brief time, which will fry the bridge diodes.  

If you have a way to charge it while keeping it isolated then a dedicated starting battery is a better way to go in my opinion.
Title: PORTABLE JUMP START
Post by: Ron Hill on February 19, 2005, 07:42:06 PM
Paul : Your money might be better spent on installing a starting battery, as Ted suggested.  There have been a number of posts on starting battery installations.  
Then you'll have it on board and also be able to keep it, as well as the house batteries charged.  A thought.   :wink:
Title: PORTABLE JUMP START
Post by: PAUL T. on February 19, 2005, 08:58:47 PM
Thank you for the comeback Ted and Ron. I do intend to install a separate starting battery. the jump start is only for the interim. I also carry a Honda 2000 generator when on multi day cruises........PAUL
Title: PORTABLE JUMP START
Post by: Ron Hill on February 20, 2005, 05:03:39 PM
Paul : I wouldn't waste my money on a starting battery with that Honda 2000.  Spend your $$ on upgrading your house bank!!
I installed my starting battery before I got my Honda 1000.  If your M25XP wouldn't turn over all you'd have to do is crank up your Honda!!  :thumb:
Title: PORTABLE JUMP START
Post by: Stu Jackson on February 21, 2005, 08:41:45 AM
Belt

Suspenders

and a drawstring

(shouldn't ever NOT get that engine going) :wink:
Title: portable jump start
Post by: sail4dale on February 21, 2005, 03:38:10 PM
I contemplated a starter battery installation and about that time a visit to Costco presented me with the decision.  For about $50 I got a suitcase that has juice enough for several starts of my engine ( I tried it), a trouble light, a recharger connection for AC or 12V DC, a 400 watt inverter, air compressor and a trouble light.  The case is sealed with a  gasket and lo and behold on the first cruise with it, my house batteries went dead and this little gem worked perfectly.   8)

I also have inflated tires at home with it and take it with me on my RV.

I am convinced it is the way to go.
Title: PORTABLE JUMP START
Post by: Stu Jackson on February 21, 2005, 06:34:41 PM
sail4dale

That's great and I'm glad it worked, but it seems like needing to bring a separate box with a battery to start your car.  You have a multipurpose piece of equipment that has to be moved from place to place, as compared to one IN PLACE that works.  If it works for you, it's a great alternative, but I sure like having that start battery right there. Period.  I don't have to remember to bring anything with me.  Just a thought.

Also, I published a Top Ten List in the February 2005 Mainsheet, that started with:  "#1) Do an Energy Budget so you’ll know what to expect from your electrical system."

So what did you do to deplete your house bank?

I continued with "3)#increase the house bank capacity to at least four times daily energy budget use (i.e., 100 AH per day = 400 AH
house bank) also, unless you’re always plugged in at night."

Glad everything else works for you and you enjoy your boat and contribute here.  Keep up the good participation.  Thanks,   :thumb:
Title: PORTABLE JUMP START
Post by: sail4dale on February 21, 2005, 10:24:45 PM
Stu
Most of cruising season I keep the starter pack on the boat and will top off the charge occasionally while running on engine.  

The house batteries were not in great shape when I got the boat and I stupidly misjudged the current being used before I ran the engine.  One cell on each of the 4D went dead.  Now I have 4 6V batteries and it gives me more amperage plus I can lift a battery if I have to change anything.  I still want to get a meter for the system .... on my wish list.   that and a folding prop :think
Title: PORTABLE JUMP START
Post by: Mike Smith on February 22, 2005, 05:53:14 AM
Ted -

That is exactly what happened to me a couple of weeks ago.  I had 4 dead (down to 10V) 6V batteries, 2 in series and then paralleled. Hooked up the jump start to them and watched them drain all the amps out!

Mike
Title: PORTABLE JUMP START
Post by: Paul Bosquet on February 22, 2005, 07:03:51 AM
Am considering a Honda generator to feed my Statpower 45+. Will the Honda 1000 watts be sufficient or do I need the 2000 watts. I prefer the smaller unit only for its size and ease of storage. For those owning a MK!, where do you store your generator 2 kw when not in use. I don't see a problem with the 1KW
Thank you
Paul
Title: PORTABLE JUMP START
Post by: Ray & Sandy Erps on February 22, 2005, 09:26:40 AM
This was discussed on the C-42 website recently.  Apparently, there can be some problems with the Honda Generators running a battery charger.  One guy was able to remedy the situation by installing some sort of an electronic device in the circut between the generator and the charger.  At any rate, it might be worth checking out, as there is at least one guy on that website, that's been there-done that already.
Title: PORTABLE JUMP START
Post by: DEMERY on February 22, 2005, 06:01:23 PM
Paul,

I have the Honda EU2000i and have no problems running the 75amp charger in my Heart 1500 Inverter. A 1000 watt should run the 45amp charger with no problems (assuming your not running large additional loads). One reason to consider the 2000 watt, is it will run your hot water heater (no need to run the auxiliary at all). I store my EU2000i in the cockpit when sailing and on the foredeck at anchor. If you have any additional questions please post them.

Thanks, Dave
Title: PORTABLE JUMP START
Post by: Ron Hill on February 22, 2005, 06:38:27 PM
Paul : I have a Honda EU1000 and have no problem with "feeding" my Statpower 20.  Have a friend that also has a 1000 and also has no problem powering his Statpower 40.   :thumb:
Title: PORTABLE JUMP START
Post by: Ray & Sandy Erps on February 22, 2005, 07:01:18 PM
This is what "ragtime" wrote on the C-42 website.  I think he indicates that his Honda is a 1999 model and that the new models may be different.  Based on his experience, might be worth asking the dealer if there are any known problems.

"I successfully used my 1000watt Honda to charge the batteries with my Heart Inverter/Charger. We used it extensively on an ICW/Bahamas trip in 1999/2000. The 1000watt generator might be different from the later 2000watt models so your experience might be different.

Initially, the generator would not drive the charger. It would just shut down like there was no input AC. I contacted the Heart people and they had a tech notice addressing the problem which they sent me. The issue is that the charger has a Power Factor which causes it to look electrically like a motor. All you need to do is to put a motor starting capacitor across the output of the generator. I don't recall all of the details but I believe I used a 50mfd capacitor.

I built a little plastic box with a plug on a pigtail to plug into the Honda, and a 110v female socket on a pigtail to connect to the AC dockwire input to the boat. I made it a separate little device so I could use the generator without the capacitor in the circuit, if necessary. The capacitor is simply inside the watertight box across the AC line.

It worked perfectly. With the capacitor in the circuit the 1000W Honda would charge the house batteries at 40 to 50 amps.

One thing to note is that the Heart Interface was very sensitive to the frequency of the AC input. The 1000W Honda has a guage and adjusting screw to set the AC frequency to exactly 60 cycles. When the frequency is only slightly off the charging current would fall to about 20 amps.

Also, on calm days at anchor, we typically put the generator in the dinghy and ran it there. This eliminated all the noise, vibration, and exhaust fumes. The Hondas a pretty quiet anyhow, but almost undetectable when running in the dinghy."
Title: PORTABLE JUMP START
Post by: Ron Hill on February 22, 2005, 08:02:43 PM
I'd be somewhat skeptical about 40 to 50 amps; as my battery monitor typically shows 14 to 15 amps while my 2004 Honda EU1000 is powering the Statpower 20.  After all, it's only a 1000 watt gen set.   :?:  :!:
Title: PORTABLE JUMP START
Post by: Paul Bosquet on February 27, 2005, 03:28:05 PM
Looking at the specs of the Truechage 40, it is written that the typical AC input current @ 120V 1s 8.5Ams
The Specs for the Honda EU1000i is 8.3 amps max.  and 16.7 Max for the EU2000i.
I guess that the numbers speak for themselves. Am still curious how someone is able to run a 40 charger with the 1000i model based on these numbers.
Question.: What is the maximum vertical clearance in the port locker, would it fit there?  I would need 16.7" that seems good place to store it and easily removable for easy access. If not, I guess the lazarette locker would be the only space available without keeping it inside the boat which I don't want to do.
Can anyone with a MK! take a measurement for me  ?

Thank you
Paul
Eliosso  C34 1989 986
Title: PORTABLE JUMP START
Post by: Ted Pounds on March 20, 2005, 04:19:55 PM
Back to the original topic:  There's a good article on the portable jump-start packs in this months issue of practical sailor.
Title: PORTABLE JUMP START
Post by: Ron Hill on March 20, 2005, 06:10:48 PM
Paul : As previously posted on this board.  
The Honda 1000 will fit in the port side cockpit of a C34 MK I and the Honda 2000 will NOT.   :!:
Title: PORTABLE JUMP START
Post by: Paul Bosquet on March 20, 2005, 07:20:26 PM
Ron,
can you put me in contact with your ' Have a friend that also has a 1000 and also has no problem powering his Statpower 40. '
I would have a few questions for him
Thanks

Paul
Title: PORTABLE JUMP START
Post by: Ted Pounds on March 21, 2005, 04:24:15 AM
Practical Sailor also had another good article on portable generators last month.   :wink:
Title: PORTABLE JUMP START
Post by: Ron Hill on March 21, 2005, 07:33:02 PM
Paul : I don't put Email addresses on the Message Board.  Give me a call at (540)891-5297.  Ron
Title: PORTABLE JUMP START
Post by: Mike Smith on March 22, 2005, 05:41:17 AM
Ray -

1.  Please get a couple of Carbon Monoxide monitors if you are running a gas powered generator anywhere on or near your boat.

2.  How do you run your power cord from the dink to your boat?

3.  How long will the generator run on a full tank of gas?

Mike
Title: PORTABLE JUMP START
Post by: Ray & Sandy Erps on March 22, 2005, 06:08:24 PM
Hello Mike,

I'm not the one with a generator.  I copied and pasted that post from a gentleman on the C-42 website about how he overcame running his battery charger with his Honda generator.  Apparently there could be a problem with some Honda generators.

I'm a 5 to 15 amp/day kind of guy in the summertime so don't worry too much about auxilary power.  I've been boning up on the subject though in case I win the lottery and get a bigger boat.  I sure like the simplicity of firing up a little Honda now and then over monitoring a wind generator, solar cells or towed generator.  This is discussed too on the C-42 website and it looks like a lot of captains are giving the self contained generators another look.  

I also like the idea of having one of these portable jump starters.  As mentioned earlier by Ted, practical sailor did a review on these products.  I like the idea of storing it in the trunk of my wife's car and then loading it up on the boat on weekends "just in case."