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Model No OPTIMA 34M
Description Optima 34M Blue Top Starting Marine Battery 12V 800CCA
Weight(kg) 17.5
Product Rating Batteries Direct 5 Stars Rating - The best quality product of its type with a proven reliability and excellent warranty support
Brand Optima
Optima Blue Top Marine Battery
Model Voltage

CCA (Amps)

Ah (@ C20)
RC (in mins)
Weight (kg)
Dimensions** (L x W x H)(mm)
+ Dual -
19.6 + Dual -
800  66 140  24.4 + Dual -
900  75
155  27.3
+ Dual -
 *Specifications may change without notice **Dimensions are overall maximum and include all handles
Optima Blue Top Marine Battery

OPTIMA® BLUETOP® 34M Ultra high-performance SPIRALCELL TECHNOLOGY® AGM (absorbent glass mat) starting battery for marine and RV. BLUETOP® has ultimate cranking power in a maintenance-free package. Lower internal resistance provides more efficient power output and faster recharges. If you are looking for a group 24 or 34 battery for boat or RV starting only, this is the one for you.

If you also have live wells, GPS, pumps, etc., running on the starting circuit of your boat, or if you are looking for house batteries for your RV, please see one of the BLUETOP® dual purpose deep-cycle/starting batteries (D34M, D27M or D31M).

The OPTIMA® model number for this battery is 34M. If you are replacing an OPTIMA® battery you already have, this model is the same as batteries marked 8006-006, 9006-006, 27935, 34M-1050, BLUES34, SC34M, BLUES34, or N9934MBLUE.

DOES NOT Include installation and/or height adapters for automotive, light truck or van applications. The appropriate adapters are included with REDTOP® and YELLOWTOP® batteries.

Warranty: 2 years private use, all OPTIMA® have their warranty details on the top label and are honoured by the warranty stated on that label.

Battery Model: 34M
Part Number: 8006-006
NSN: 6140-01-475-9416
UPC Code: 8 11405 00006 5

Performance Data

Cold Cranking Amps: 800
Cranking Amps: 1000
Nominal Voltage: 12 volts
Open Circuit Voltage (fully charged): 12.8 volts
Internal Resistance (fully charged): 0.0030 ohms
Capacity: 50 Ah (C/20)
Reserve Capacity: BC I: 100 minutes (25 amp dis charge, 80°F (26.7°C ), to 10.5 volts cutoff)

Physical Characteristics

Plate Design:

High purity lead-tin alloy.  Wound cell configuration utilizing proprietary SPIRALCELL TECHNOLOGY®.


Sulfuric acid, H2SO4

Case: Polypropylene
Case Color: Dark Gray
Cover Color: “OPTIMA“ Blue
Group Size: BCI: 34
Post Type: Dual SAE & 5/16 Stainless Stud
Weight: 17.5
Length: 254 mm
Width: 171 mm
Height: 199 mm


CCA (BCI 0°F): 800 amps
MCA (BCI 32°F): 1000 amps

Recommended Charging

The following charging methods are recommended to ensure a long battery life:
(Always use a voltage regulated charger with voltage limits set as described below.)

Model: 34M
These batteries are designed for engine starting applications.  They are not recommended or warranted for use in deep cycle applications.

Recommended Charging Information

Alternator: 13.3 to 15.0 volts
Battery Charger: 13.8 to 15.0 volts; 10 amps maximum; 6-12 hours approxima te
Float Charge: 13.2 to 13.8 volts; 1 amp max imum current (indefinite time a t lower voltages)
Rapid Recharge (Constant voltage charger): Max imum voltage 15.6 volts. No current limit as long as ba ttery tempera ture rema ins below 125°F (51.7°C ). C harge until current drops below 1 amp. All limits must be stric tly adhered to.
Applications: 14.7 volts.  No current limit as long as battery temperature remains below 125°F (51.7°C).  When current falls below 1 amp, finish with 3 amp constant current for 1 hour.
All limits must be strictly adhered to.

Authorised Optima Batteries Distributor 
Warranty Info OPTIMA 34M1410227480_1.pdf 

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