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BlueTop Technical Specs
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OPTIMA
STARTING AND DUAL PURPOSE BATTERIES
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MODEL NUMBER
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D27M
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34M
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D34M
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D31M
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PERFORMANCE
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Voltage
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12V
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12V
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12V
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12V
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Cold
Cranking Amps BCI @ -18¡ãC
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800
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800
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750
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900
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Cranking
Amps BCI @ 0¡ãC
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1000
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1000
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870
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1125
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Reserve
Capacity (minutes)
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140
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100
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120
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155
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Capacity (AH, C/20 rate)
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66
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50
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55
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75
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Internal
Resistance (ohms)
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0.0025
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0.0030
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0.0028
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0.0025
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PHYSICAL SPECS
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Length (mm)
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309
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255
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255
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325
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Width (mm)
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172
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174
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174
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166
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Height (mm)
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221
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201
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201
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238
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Weight (kg)
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24.4
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17.4
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19.7
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27.1
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Post Type
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Dual SAE & 5/16" Stainless Stud
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BCI Group
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27
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34
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34
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31
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Product Spec
Sheets
For printable product specification sheets, click on your battery
choice above. The printable documents provide information on physical
characteristics, performance, power, charging and shipping.
The following charging
methods are
recommended to insure a long battery life (Always use a voltage
regulated charger, with voltage limits set as described below):
BlueTop Type: BT 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
approximate.
Rapid Recharge:
Maximum voltage 15.6 volts
(regulated).
Maximum current: No limit as
long as temperature <50¡ãC (125¡ãF).
Maximum recharge time: Charge
until current drops below 1 amp.
Float charge:
13.2 to 13.8 volts, 1
amp maximum current, time
indefinite (at lower voltage).
All limits must be strictly
adhered to.
Blue Top Type: BT D27 & D31
These batteries are dual
purpose. They are designed for engine starting
and deep cycling applications and for use in boats with large accessory
loads.
Recommended charging
information:
Alternator:
13.65 to 15.0 volts.
Battery charger:
13.8 to 15.0 volts, 10
amps maximum, 6-12 hours
approximate.
Cyclic Applications:
14.7 volts, no current
limit as long as battery
temperature remains below 50¡ãC (125¡ãF). When current falls below 1 amp,
finish with 2 amp constant current for 1 hour for BT D34 and 3 amp
constant current for 1 hour for BT D27.
Rapid Recharge:
Maximum voltage 15.6 volts
(regulated).
Maximum current: No limit as
long as temperature <50¡ãC (125¡ãF).
Maximum recharge time: Charge
until current drops below 1 amp.
Float charge:
13.2 to 13.8 volts, 1
amp maximum current, time
indefinite (at lower voltage).
All limits must be strictly
adhered to.
Safety Information:
Always wear safety glasses when
working with
batteries.
Always use a voltage regulated
battery
charger with limits set to the above ratings. Overcharging can cause
the safety valves to open and battery gasses to escape, resulting in
premature failure. These gasses are flammable! You cannot replace water
in sealed batteries that have been overcharged. Any battery that
becomes very hot or makes a hissing sound while recharging should be
disconnected immediately.
Failure to fully charge a
battery can result
in poor performance and a reduction in capacity
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RAE
TECHNOLOGY PTE LTD