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Description
Optima Batteries BlueTop SLI Marine Semi-Tractie accu, zeer hoge startstroom, dubbele poolBij een Optima accu kunt u vertrouwen op ongevenaarde betrouwbaarheid en duurzaamheid. Door de volledig gesloten behuizing is de Optima accu uiterst veilig en corrosievrij. Weglekken of vrijkomen van zuur is uitgesloten en dat maakt de Optima accu tot een schone, gebruiks en milieuvriendelijke accu. Bovendien is bijvullen of polen reinigen overbodig dankzij de onderhoudsvrije en gesloten bak. De Optima accu's zijn leverbaar als startaccu (Optima Red
Bij een Optima accu kunt u vertrouwen op ongeëvenaarde betrouwbaarheid en duurzaamheid. Door de volledig gesloten behuizing is de Optima accu uiterst veilig en corrosievrij. Weglekken of vrijkomen van zuur is uitgesloten en dat maakt de Optima accu tot een schone, gebruiks- en milieuvriendelijke accu. Bovendien is bijvullen of polen reinigen overbodig dankzij de onderhoudsvrije en gesloten bak. De Optima accu's zijn leverbaar als startaccu (Optima Red Top), semi-tractie accu (Optima Yellow Top) en Marine & Semi-tractie accu (Optima Blue Top). OPTIMA BLUE TOP: Naast de uitstekende startcapaciteit van de Optima BlueTop accu is deze accu ook geschikt en ontworpen als semi-tractie accu. Dit betekent dat de accu ongeacht de omstandigheden, vocht, hitte, vuil, overmatige trillingen of regelmatige ontlading, gegarandeerd ononderbroken vermogen levert gedurende de volledige ontlaad cyclus. Bij belasting handhaaft de BlueTop een relatief hoog voltage. Hierdoor levert hij meer energie, dan vergelijkbare conventionele accu's. Dit alles dankzij Optima's Spiral Cell Technology die de voordelen van een startaccu combineert met die van een (semi)tractie-accu. De BlueTop levert beduidend meer laad- en ontlaadcycli dan conventionele lood-zuur accu's. Bovendien is de accu bijzonder geschikt voor seizoensgebonden gebruik dankzij de geringe zelfontlading. De robuuste, lekvrije constructie is schok- en trillingsbestendig en zorgt voor onderhoudsvrij startvermogen, waar u zich ook bevindt. De Optima BlueTop is uitgevoerd met een extra (Marine) aansluiting. Omschrijving Optima Blue Top 50Ah SLI-4.2 (BCI 34/78) Zoekcode BT SLI-4.2 Specificaties: Afmetingen 254 x 175 x 180 x 200mm Poolschema 1 Terminal MAR Bodem 1 Nom cap 12V 50Ah(20h) Koudstart 815 EN Res cap 100 (min) gewicht 17.4 kg * Amperage: 50 A Voltage: 12 Volt Soort Accu: deep cycle accu Toepassing Accu: boot, camper, caravanShipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Room Divider That Gives Instant “This Is a Separate Space Now” Energy
Size: 3 Panel 12FT W
The Siebwin 3 Panel Folding Privacy Screen is surprisingly effective at changing the feel of a room without requiring construction, commitment, or somebody yelling about load bearing walls. The 12 foot width gives a substantial amount of coverage, making it useful for creating privacy, dividing open areas, blocking visual clutter, or setting up temporary sections within larger rooms. This saved us a ton of time and money in our new studio and enabled us to create a kitchen and office in one room.
The wider feet make a huge difference because flimsy room dividers that collapse every time someone exhales too aggressively are deeply annoying. This one feels more stable and grounded once positioned. The folding design makes it easy to move around or adjust depending on the space, and it folds down relatively compactly when not in use. It is basically the introvert curtain wall of dreams.
The material has a clean, neutral look that blends well into different room styles without screaming “temporary office cubicle panic.” It works well for apartments, studios, shared spaces, dressing areas, or simply hiding the mountain of chaos you swear you are going to organize tomorrow. Practical, portable, and refreshingly easy to use without turning setup into a three hour emotional event.
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Reviewed in the United States on May 16, 2026
★★★★★ 4
It's 2 panels holding 1 big privacy screen. Can't use as 2 separate 4' panels, but works great.
Size: 2 Panel 8FT W
This 2 panel privacy screen works well. Assembly was very straight forward, with easily labeled tubes. My son and I had it together in about 10 minutes, which was probably 3 minutes of me telling him to quit playing around and hand me the parts. It feels very sturdy, not likely to fall over or anything. The material fits well, with the Velcro being very strong. Measurements are all very accurate, with all pieces attaching properly. We have a similar privacy screen at work that we have to try and stretch out because the top and bottom Velcro doesn't fit quite right... this model does not have any issues though. The material is thin and light weight, but solid black so that you can't see anything through or behind it. I definitely think it's a great deal for the money.
What I think would have given it 5 stars though, is if you had 2 totally separate 4' panels instead of 2 panels with one big screen. It really wouldn't cost any extra to make it so that the screen was in 2 pieces and you could use it as 2 separate panels instead of having to use it as one big panel. It says 2 panel folding privacy screens, but it's really one big one that folds in the middle.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Worth the investment
Size: 1 Panel, Size: 1 Panel
I had to order this in an emergency. To put it in brief words, I live in a two level studio unit. My bedroom TV fell backwards off the bureau accidentally and down the stairs to its demise. Putting this together was no problem, instructions were thorough and easy. It came with several bars that connected together smoothly and an Allen key for the brackets and screws for the feet. I did one less horizontal bar on top and bottom so it could fit, which was great because with all of them on it was too long. However I ran into the difficulty of the horizontal bars popping out of the brackets during the last stages, but eventually got it done. I was also looking for a specific type of divider where I could adjust the feet so I could tuck it in between the dresser and banister. Glad I made this purchase.
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Reviewed in the United States on February 19, 2026
★★★★★ 1
You Get What You Pay For! A Piece Of Junk!
Size: 1 Panel
Flimsy and a piece of junk. Don’t waste your money. Assembly is a pain because it is so flimsy. Divider is thin. You can see right through it. Very wobbly.
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Reviewed in the United States on February 25, 2026
★★★★★ 4
Instructions are useless
Size: 1 Panel
The instructions are poorly written and not very helpful. The divider itself is easy to assemble, and honestly, it would’ve been quicker if I had skipped the directions altogether. Once put together, though, it works as intended.
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Reviewed in the United States on February 20, 2026