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
no image

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?
FIBERGLASS FLEECE
ABSOLUTELY MAINTENANCE-FREE
LEAK PROOF
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 …
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 …
For plugs: Simply open them and look inside.
Low maintenance batteries have a distinct advantage: if something is wrong, you can open them and look inside. What you see will give you some clues. Warning: You can tell if the battery can be opened by the individual plugs on the top. Often these lead-acid …
How does a melted pole occur?
A melted pole is caused by a short circuit when the battery polarity is reversed during bridging or when the poles are connected by a tool or other object. Tip: Take care when handling batteries. Learn more about short circuit and how to avoid it.
What do deposits on the battery plugs mean?
Black deposits on the plugs indicate a battery that has worn out prematurely due to continuous excessive load. Tip: Always ensure a good balance between current drain and charging. Information on capacity calculations and charging behaviour can be found …
What is wear and what can you do about it?
With a worn battery, the active material has degraded due to excessive load. Modern vehicles with many consumers constantly place higher demands on the battery. The capacity of the installed batteries is often not designed for this. Prevention The choice …
Seasonal use of drive or supply battery
Many vehicles, devices or machines are only used seasonally or on certain occasions. Ideally, your battery should be ready whenever you need it. That's why we recommend always storing batteries fully charged, at approx. 15 to 18° C and in a dry place, …
What is sulfation and what can you do about it?
Sulphation or sulphation is an undesirable ageing process in batteries where too much lead sulphate forms on the lead plates, which cannot be removed even with prolonged charging. The battery's capacity drops significantly, or it fails altogether. Sulfation …
What does pole growth on the battery mean?
Whitish-grey deposits on the poles, so-called "pole growth", is caused by strong sulphation on the plates. Tip: Always ensure a good state of charge.
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 …
First the format, then the capacity
A battery must of course fit in your vehicle, machine or device. Check the dimensions of your old battery or the available space where you want to install the battery. Check that the terminals are easily accessible, that you can reach them easily with …

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