Abbildung Optima Bluetop
Symbol: Eignung für Wohnmobile
Symbol: Eignung für Marine
Symbol: Eignung für wind-power plants
Symbol: Eignung für Solar applications
Symbol: Eignung für Bus
Symbol Recycling efficiency 95 %
Symbol Maximum tipping angle 90º
Optima Bluetop
Sealed maintenance-free pure-lead spiral-cell battery | electrolyte absorbed (AGM)

Optima BluetopMore cycles in maritime use

Developed for maritime applications such as boat accessories, electric motors, bow thrusters, it also supplies consumers in camping vehicles or buses and stores electricity from wind or solar power systems.

Our recommendations for all utility applications requiring a spill-proof battery, especially in maritime applications.

Features

  • Leak-proof

    Because the electrolyte is bound in the glass fibre mat and the battery is tightly sealed and equipped with a safety valve, it is leak-proof.

    Your advantage: This battery is suitable for use on water, e.g. for powering on-board equipment or navigation instruments on boats, or wherever a leak-proof battery is required.

  • Permanently stable power

    This battery allows constant stable current to be drawn.

    Your advantage: Particularly suitable for applications in continuous use rather than with highly fluctuating power peaks and troughs.

  • Fast charging

    The tightly packed AGM battery with wound grids brings a lot of reaction surface in a small space. It can also be charged with a more powerful charger than a GEL or flooded battery.

    Your advantage: Short standstill times between rides.

Characteristics

  • For highest cycle requirements.
  • Constant performance quality during the entire discharge process.
  • Shorter charging time and twice the life of conventional boat batteries.
  • Designed for maritime applications.
  • Very resistant to vibration.
  • Wet charged. Ready to use.
  • Sealed maintenance-free. VRLA battery with gas recombination and safety valves, where refilling is neither possible nor necessary.
  • Leak-proof. Can also be installed at an angle, as the electrolyte is absorbed in glass fibre mats and the battery is tightly sealed.
Recycling efficiency 95 %
Maximum tipping angle 90º

All types

Optima Bluetop

Battery Volt Capacity CCA Length mm Width mm Height mm Pos. of terminal Terminal
BTSLI-4.2Li1250 AH (c20)815 A (EN)2541752001DTmore
product image Supply Battery Optima Bluetop BTSLI-4.2L

BTSLI-4.2L

Japan-Code:{jpn}

BTSLI-4.2L

Position of Terminal:1
Schema Schaltung 1
Volt:12
Terminal:DT
Schema Endpol DT
Capacity:50 AH (c20)
Base plate:B13
Schema Bodenleiste B13Schema Bodenleiste B13
Cold Cranking Ampere:815 A (EN)
Size:254 x 175 x 200 mm
Schema Batteriekasten

Kasten: BTSLI-4.2L
Where can I buy this battery?

Dealer online shop

Buy online

Locally

Dealer locator
Download datasheet
BTDC-4.2Li1255 AH (c20)765 A (EN)2541752001DTmore
product image Supply Battery Optima Bluetop BTDC-4.2L

BTDC-4.2L

Japan-Code:{jpn}

BTDC-4.2L

Position of Terminal:1
Schema Schaltung 1
Volt:12
Terminal:DT
Schema Endpol DT
Capacity:55 AH (c20)
Base plate:B13
Schema Bodenleiste B13Schema Bodenleiste B13
Cold Cranking Ampere:765 A (EN)
Size:254 x 175 x 200 mm
Schema Batteriekasten

Kasten: BTDC-4.2L
Where can I buy this battery?

Dealer online shop

Buy online

Locally

Dealer locator
Download datasheet
BTDC-5.0Li1266 AH (c20)845 A (EN)3091722211DTmore
product image Supply Battery Optima Bluetop BTDC-5.0L

BTDC-5.0L

Japan-Code:{jpn}

BTDC-5.0L

Position of Terminal:1
Schema Schaltung 1
Volt:12
Terminal:DT
Schema Endpol DT
Capacity:66 AH (c20)
Base plate:B13
Schema Bodenleiste B13Schema Bodenleiste B13
Cold Cranking Ampere:845 A (EN)
Size:309 x 172 x 221 mm
Schema Batteriekasten

Kasten: BTDC-5.0L
Where can I buy this battery?

Dealer online shop

Buy online

Locally

Dealer locator
Download datasheet
BTDC-5.5Li1275 AH (c20)975 A (EN)3251652380DTmore
product image Supply Battery Optima Bluetop BTDC-5.5L

BTDC-5.5L

Japan-Code:{jpn}

BTDC-5.5L

Position of Terminal:0
Schema Schaltung 0
Volt:12
Terminal:DT
Schema Endpol DT
Capacity:75 AH (c20)
Base plate:none
Cold Cranking Ampere:975 A (EN)
Size:325 x 165 x 238 mm
Schema Batteriekasten

Kasten: BTDC-5.5L
Where can I buy this battery?

Dealer online shop

Buy online

Locally

Dealer locator
Download datasheet

Accessories
Charger

DEFA SmartCharge

Compact design for convenient charging of 12 volt batteries.


See product

Fronius Selectiva


Battery-friendly high-performance chargers with high overall efficiency.


See product

Battery knowledge

What is an AGM battery?
What is a camper battery?
A supply battery used in motorhomes or campers, colloquially known as a camper battery. Typically, it is charged with stationary charging current at the RV parking lot or via a solar system, because the alternator is not sufficient to provide the necessary …
Our absolutely maintenance-free motorcycle batteries
intAct Bike-Power AGM, intAct Bike-Power SLA, intAct Bike-Power GEL, intAct Bike-Power HVT and intAct Bike-Power GEL HVT-HD are valve regulated lead-acid batteries or VRLA batteries (VRLA=Valve Regulated Lead-Acid). VRLA batteries produce much less gas …
What does absolutely maintenance-free mean?
Absolutely maintenance-free batteries are valve-regulated lead-acid batteries or VRLA batteries (VRLA = Valve Regulated Lead-Acid) that are sealed at the factory. Here, significantly less gas is produced than in wet batteries. The gas produced remains …
Why does this battery have such a good current draw?
Due to the AGM technology, this battery absorbs the current particularly well, i.e. it recharges faster than a conventional wet battery and you can charge it with a higher charging current or a more powerful charger, like the ? This characteristic comes …
Recognising and classifying battery damage
When the battery fails, it's annoying. Sometimes it's because of a faulty battery, sometimes it's because of the way you handle it. And only cause research and precaution helps permanently. What is wrong with the battery can often be seen from the outside. …
Every battery ages
With each charge/discharge process (cycle), active material is inevitably lost and the battery's performance declines. Once it has fallen to the point where it can no longer fulfil its purpose - e.g. start the vehicle, supply the consumers or drive the …
Always choose the right battery for the application
When choosing a battery, it basically depends on what it is to be used for. The most important distinction is between starter batteries, including motorcycle batteries, and cyclic batteries such as traction or supply batteries. Starter batteries, including …
Cleanliness pays off
To ensure proper battery function, it makes sense to keep the battery surface clean and dry. Greasy or silicone-containing dirt on the lid can hinder the flow of current. Moisture on the battery can cause a short circuit in the worst case.
What does low maintenance mean?
Low-maintenance batteries can be recognised by the removable sealing plugs on the top, the vent hose and the white or transparent housing. In these batteries, the electrolyte is in liquid form, i.e. it is not bound as GEL or in fleece. They are not sealed …
Pay attention to the state of charge
We recommend: Check the charge level every 2 - 3 months if ... ... the vehicle is often left unused. ... you drive a lot of short distances. ... many consumers are installed. ... it is cold. ... in start-stop systems the engine does not switch off as …
When liquid is lost
Fluid evaporates in batteries during the chemical reaction to generate electricity, more so in a wet battery than in an AGM or GEL battery where the acid is fixed in non-woven or as GEL respectively. Unlike these sealed batteries, the vapor in the sealed …
A coherent equation: A lot out, a lot in.
Every battery loses power over time. If it is loaded normally and is always fully charged, the capacity is slowly reduced. If it is often overloaded and insufficiently charged, the capacity is reduced much more quickly, i.e. the battery ages much faster. Ideally, …
Round cell supply batteries
Similar to the tank cell, the surface area is increased by "winding" the grids, resulting in a larger amount of active mass. The box size is relatively compact, so you get the benefits of a utility battery in a small space, along with good starting …
Lithium supply batteries
The capacity and performance of lithium iron phosphate batteries are very high compared to other batteries of the same box size. They have an extremely long life expectancy, low self-discharge and can tolerate the highest charging currents. To fully charge …

What is a Supply Battery?

Supply batteries must provide power for as long as possible for consumers that are not connected to the regular power grid or the starter battery. Either in mobile applications, e.g. camping or in island installations such as mountain huts, or in safety applications when the normal power grid fails or to compensate for so-called mains wipers. Depending on the application, they are charged with a charger from the mains or via smaller photovoltaic or wind power systems.

So not only do they have to supply power for a long time and then take it up again well, but they also have to cope well with changing current levels and voltages.

Supply batteries are cyclic batteries, i.e. they are designed to continuously deliver current up to a maximum depth of discharge of 80% when supplying electrical consumers and then to be fully recharged again. In contrast, a starter battery delivers a short, strong current surge for starting the engine and is recharged by the alternator while driving.

Maintenance and Care

Absolutely maintenance-free batteries are valve-regulated lead-acid batteries or VRLA batteries (VRLA = Valve Regulated Lead-Acid) that are sealed at the factory. Here, significantly less gas is produced than in wet batteries. The gas produced remains in the circuit of the battery due to gas recombination. As a result, these batteries lose significantly less liquid. They do not need to be topped up, and it is not even possible to do so, as they cannot be opened again without damage.

Für welchen Einsatz ist die Optima Bluetop geeignet?

Symbol WohnmobileWohnmobile
Wohnmobile, Caravan, Motorcaravan, Motorhome, Campingbus, Reisemobil, Alkoven, Campingfahrzeuge
Symbol MarineMarine
Boats, ships, yachts
Symbol wind-power plantswind-power plants
As a power storage for small to medium-sized wind power plants or wind turbines.
Symbol Solar applicationsSolar applications
Small to medium-sized solar systems/solar applications e.g. in camping, stand-alone operation etc.
Symbol BusBus
Bus, Omnibus, Autobus