Optima Battery

See specs below image.

This top-view drawing illustrates post placement on the Optima Model D34M.

Note orientation of both positive and negative SAE posts and 5/16" threaded studs.


Model D34M top dimensions are 6.8"W x 10"L. Height is 7.8" including posts.

Case height w/o posts is 6.7".
Base measures 6.8"W x 10"L.
Battery has removable comfort-grip carry strap.

Note: If you need GM-style side connectors, see model D34/78.
Note: Model 34M battery post placement is identical to D34M, but Model 34M is not a deep cycle battery

Selecting a Battery for your Boat

Units such as CA (cranking amps), CCA (cold cranking amps), and MCA (marine cranking amps) are the number of amps a battery can supply for 30 seconds at a specific temperature.
CA - 0° C
CCA - 0° F
MCA - 32° F also called CA (cranking amps)
CCA - 80° F is often referred to as HCA (hot cranking amps)

Why is there a marine cranking amp? Well, how often is a boat used below 32 degrees? Hence, MCA more closely represents the batteries performance in the real world. Since the majority of automotive customers are mounting the battery in the engine bay of the vehicle, a temperature of 80 degrees most closely represents the mean of temperatures when the battery will be used.

Rating Definitions and Conversion Formula
CCA - Cold Cranking Amp
[SAE] Max current the battery can deliver for 30 sec. at 0F (-18C) while V >= 7.2V
[EN] Max current the battery can deliver for 10 sec. at 0F (-18C) while V >= 7.5V
[DIN] Max current the battery can deliver for 30 sec. at 0F (-18C) while V >= 9V
[IEC] Max current the battery can deliver for 60 sec. at 0F (-18C) while V >= 8.4V

CA - Cranking Amp
Max current the battery can deliver for 30 seconds at 32F (0C) while V >=7.2

MCA - Marine Cranking Amp (equal to CA)
To convert MCA or CA to CCA multiply CA by 80%

HCA - Hot Cranking Amp
Max current the battery can deliver for 30 seconds at 80F (26.7C)) V >=7.2
To convert HCA to CCA, multiply HCA by 69%

You cant directly convert between CA, CCA, and MCA, because its at a different temperature.
So to avoid confusion always included the temperature it was measured at.


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Two standard ratings are used to measure a battery's storage capacity.

Amp Hours
The Amp Hour rating tells you how much amperage is available when discharged evenly over a 20 hour period. The amp hour rating is cumulative, so in order to know how many constant amps the battery will output for 20 hours, you have to divide the amp hour rating by 20.

Example: If a battery has an amp hour rating of 75, dividing by 20 = 3.75. Such a battery can carry a 3.75 amp load for 20 hours before dropping to 10.5 volts. (10.5 volts is the fully discharged level, at which point the battery needs to be recharged.)
A battery with an amp hour rating of 55 will carry a 2.75 amp load for 20 hours before dropping to 10.5 volts.

Reserve Minutes
Reserve minutes is the number of minutes a battery will carry a 25 amp load before dropping to 10.5 volts. (10.5 volts is the fully discharged level, at which point the battery needs to be recharged.)
Reserve Capacity (RC)
The Reserve Capacity rating is the second most important consideration while buying a battery. This is because of the effects of an increased parasitic (key off) load and in emergencies. Reserve Capacity is the number of minutes a fully charged battery at 80 degrees F (26.7 degrees C) can be discharged at 25 amps until the voltage falls below 10.5 volts. More RC is better in every case! In a hot climate, for example, if your car has a 360 OEM cranking amp requirement, then a 400 CCA rated battery with 120 minute RC with more electrolyte would be more desirable than one with 1000 CCA with 90 minutes of RC. If more RC is required, two six-volt batteries can be connected in series or two (or more) 12 volt batteries can be connected in parallel. Within a BCI group size, generally the battery with larger RC will weigh more because it contains more lead.

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Size
Batteries are generally sold by model, so the group numbers will vary for the same price. This means that for the SAME price you can potentially buy a physically larger battery with more RC than the battery you are replacing, e.g. a 34/78 group might replace a smaller 26/70 group and give you an additional 30 minutes of RC.


Freshness
Determining the "freshness" of a battery is sometimes difficult. A battery that is more than six months old should never be bought because it begins to sulfate. Sulfation occurs when lead sulfate can not be converted back to charged material and is created when discharged batteries stand for a long time or from excessive water loss.

Rotax 1503 engine

The Rotax 1503 engine is an engineering masterpiece, the only 4 stroke engine specifically designed for watercraft use, the only watercraft engine with a closed loop cooling system. It is now available in several variations from the new 135hp found in the 2006 GTI range right up to the wopping 215hp supercharged intercooled monster available in various Sea doo jet boats.

It has 1503cc 3 cylinder’s single overhead cam pushing 12 valves. The engine is a dry sump variety running with twin oil pumps and a tip over protection system to stop the oil from flowing to unwanted areas in the case of the watercraft being inverted.

Valve timing is designed in such a way that every time you turn off your 4 tec equipped Sea doo the engine will stop with all 12 valves firmly closed to make water ingression almost impossible.

1503 Rotax 4-Tec Trouble Codes

P0106
Manifold atmospheric presure sensor out of range

P0107
Manifold atmospheric presure sensor or Manifold barometric presure sensor shorted to ground

P0108
Manifold atmospheric presure sensor or Manifold barometric presure sensor shorted to 12V or open circuit

P0111
Intake manifold temp sensor faulty

P0112
Intake manifold shorted to ground

P0113
Intake manifold shorted to 12V or open circuit

P0116
Engine temp sensor faulty

P0117
Engine temp sensor shorted to ground

P0118
Engine temp sensor shorted to 12V or open circuit

P0122
TPS out of range - short to ground

P0123
TPS out of range - short to 12V or open circuit

P01231
Fuel pump shorted to ground or open circuit

P0232
Fuel pump shorted to 12V

P0261
#1 injector short to ground or open circuit

P0262
#1 injector shorted to 12V

P0264
#2 injector short to ground or open circuit

P0265
#2 injector shorted to 12V

P0267
#3 injector short to ground or open circuit

P0268
#3 injector shorted to 12V

P0236
Knock sensor out of range

P0336
Crank position sensor - wrong RPM detected

P0337
No CPS signal, but CAPS signal detected

P0339
Crank signal fault not plausible with cam signal

P0344
Cam phase sensor signal missing

P0351
Ignition coil #1 open circuit or shorted to ground or to 12V

P0352
Ignition coil #2 open circuit or shorted to ground or to 12V


P0353
Ignition coil #3 open circuit or shorted to ground or to 12V

P0461
Fuel level sensor circuit out of range

P0462
Fuel level sensor shorted to ground

P0463
Fuel level sensor circuit shorted to 12V or open circuit

P0505
DLA output stage cutoff memory cuircut or output stage fault or open circuit or short to 12V

P0513
Incorrect DESS key

P0520
Oil pressure switch faulty

P0544
Exhaust gas temperature sensor fautly

P0545
Exhaust gas temperature switch shorted to ground

P0546
Exhaust gas temperature switch shorted to 12V or open circuit

P0562
Battery voltage too low

P0536
Battery voltage too high

P0600
CAN communication problem detected by EMS or MPEM

P0601
TPS learns unlikely or checksum fault

P0602
ECU not coded

P0604
RAM faulty

P0605
EEPROM faulty

P0605
Checksum fault EEPROM

P0608
Sensor 5V power supply short to ground

P0608
Sensor 5V power supply short to 12V

P0616
Starter relay short to ground or open circuit

P0617
Starter relay short to 12V

P1102
TPS adaption failure

P1104
TPS adaption cancelled

P1148
Fuel injector 1,2 or 3 - safety fuel cutoff disabled

P1200
Blow-by valve shorted to ground or open circuit

P1201
Blow-by valve shorted to 12V

P1202
Oil tank pressure switch implausible or blow-by valve still closed

P1517
Compass out of range

P1590
VTS position sensor out of range

P1591
VTS position sensor - low voltage

P1592
VTS position sensor - high voltage

P1593
VTS malfunction

P1607
MPEM fault

P1675
Spare output 1 shorted to ground or open circuit

P1676
Spare output 1 shorted to 12V

P1678
Spare output 2 shorted to ground or open circuit

P1679
Spare output 2 shorted to 12V

P1680
Comminication problem detected by MPEM

P1681
Communication problem - instrument cluster message missing

P1682
Communication problem - EMS message missing

P1683
COM RAM fault

P1690
VTS control up circuit open circuit or shorted to ground

P1691
VTS control up circuit shorted to battery

P1692
VTS control down circuit open circuit or shorted to ground

P1693
VTS control down circuit shorted to battery

P0344, P1200
Burnt TOPS 10A fuse

P1675
Burnt depth gauge or spare 2A fuse

P0353, P0267
Burnt cylinder #3 ignition coil and injection 10A fuse

P0352, P0264
Burnt cylinder #2 ignition coil and injection 10A fuse

P0351, P0261
Burnt cylinder #1 ignition coil and injection 10A fuse

P1680, P1681
Burnt information center 1A fuse

P0616
Burnt Bilge pump, beeper, diagnostic center 3A fuse

P1678
Burnt spare 5A fuse

P0231
Burnt starter, fuel pump 10A fuse

P0600
Burnt MPEM 2A fuse

P1690, P1692

Burnt VTS 7.5A fuse