light weight battery?

**StratosVT** · 04-24-2016, 11:04 PM

Originally Posted by stoker2001

I get away with an Odyssey PC625 on a S3000 drag (16amp charge) with Weldon 2015 pump.gotta keep her charged after every outtting tho

You mean you've gotten away with it so far....

The ecu does compensate for lower voltage to an extent so I would imagine thats the only reason you haven't destroyed the motor. A 625 is adequate to run your trim and thats about it.

**stoker2001** · 04-25-2016, 06:07 PM

Originally Posted by StratosVT

You mean you've gotten away with it so far....

The ecu does compensate for lower voltage to an extent so I would imagine thats the only reason you haven't destroyed the motor. A 625 is adequate to run your trim and thats about it.

we have a delta here with 1000 miles of protected flat fresh water.my runs consist of 70-80 miles using 30 pitch prop and lots of 100-115mph flogs.i do run modded A6 ECU on rich side at 105%.i run 28cc heads and mix 100LL with 50% pump premium.been doing this for decades and have been lucky to have NEVER had a Rod or Crank failure and cant remember the last time I scored a piston..KNOCK ON WOOD!!!

**Magcat 62** · 05-09-2016, 03:51 PM

Sources say a 500 cca will crank a 200? lithium ion 12v bikemmaster lists one.

**dwilfong** · 05-09-2016, 03:57 PM

The Merc HP manual for 245/260/280 states 350CCA minimum and 100 amp reserve capacity.

**Baja170** · 05-10-2016, 07:00 AM

Originally Posted by stoker2001

we have a delta here with 1000 miles of protected flat fresh water.my runs consist of 70-80 miles using 30 pitch prop and lots of 100-115mph flogs.i do run modded A6 ECU on rich side at 105%.i run 28cc heads and mix 100LL with 50% pump premium.been doing this for decades and have been lucky to have NEVER had a Rod or Crank failure and cant remember the last time I scored a piston..KNOCK ON WOOD!!!

Sounds like a lot of fun. Hell yea!

**Baja170** · 05-10-2016, 07:05 AM

Lithium Polymer Li-Po would be the lightest option and you just need enough correct series voltage and say 2P or 3P (parallel). Downside is you need a charger that can monitor each cell voltage to safely charge them after you run them down. You could probably get by with less than 10 pounds a pack and at the size they are, you could carry an extra pack with you for a backup. I have always wondered why Li-Po technology has not made it to boats yet.

**Magcat 62** · 05-11-2016, 04:52 PM

will a merc ob charge a lithium ion battery? i heard somein about a special charger needed?????? ANYONE?

**stoker2001** · 05-11-2016, 06:01 PM

Originally Posted by terrikirchner

will a merc ob charge a lithium ion battery? i heard somein about a special charger needed?????? ANYONE?

yup special charger needed.My Merc wont charge them.contact Rich Srnec on here for the Li_po and chargers

**Mark75H** · 05-11-2016, 07:06 PM

Originally Posted by Baja170

Lithium Polymer Li-Po would be the lightest option and you just need enough correct series voltage and say 2P or 3P (parallel). Downside is you need a charger that can monitor each cell voltage to safely charge them after you run them down. You could probably get by with less than 10 pounds a pack and at the size they are, you could carry an extra pack with you for a backup. I have always wondered why Li-Po technology has not made it to boats yet.

Originally Posted by stoker2001

yup special charger needed.My Merc wont charge them.contact Rich Srnec on here for the Li_po and chargers

That's probably it

**aggiestckl** · 05-11-2016, 07:14 PM

i have heard of several people having issues with the lithium batteries overcharging, destroying 300x electronics, catching fire, etc.

I spent $400 on a stark battery and refuse to put in my boat.. not to mention they list amp ratings that are way off

**dwilfong** · 05-11-2016, 08:05 PM

http://federalbatteries.com.au/batteries/
Go here and you will find all the specs on all Federal batteries including the odyssey and Deka.
Take a look at the http://federalbatteries.com.au/AUX14/ you will need two. Remember the CCA and the reserve capacity is X 2 when you use two in parallel.
Thy are used as auxiliary batters in BMW and Mercedes.
Thy are 8lbs each.........

http://www.batteriesasap.com/aux14.html you can get them here cheep.....

**aggiestckl** · 05-11-2016, 08:09 PM

Be careful running that **** in your boat

**CNC_Guy** · 05-11-2016, 08:20 PM

Lithium cannot be extinguished if a fire breaks out.

**dwilfong** · 05-11-2016, 08:42 PM

It is a AMG same as the odyssey no lithium in it.
It is a lead acid batt.
No special charger needed.
Will charge just like any other batt.
Run LiPo and LiFe in my RC boats know all about them and what thy can do. have a special bag to charge them in.
At 200 CCA and 170 amp reserve capacity ,X2= 400 CCA and 320 reserve capacity at 16Lbs. for about $150