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Lithiumumrüstung 'Bulltron Polar'- LiFePO4 Batterie mit Heizung inklusive Austausch der LadegeräteBulltron Polar sichere und leistungsstarke LiFePO4 Qualitt auch bei eisigen Temperaturen Bei unserer professionellen Lithium Umrstung ersetzen wir deine bestehende AGM Batterie(n) durch die leistungsstarke Bulltron Polar Batterie (LiFePO4) und passen deine Ladeinfrastruktur optimal an die Anforderungen moderner Lithiumtechnik an. Das Ergebnis: mehr nutzbare Kapazitt, deutlich geringeres Gewicht, schnellere Ladezeiten und maximale Zuverlssigkeit auch
Bulltron Polar - sichere und leistungsstarke LiFePO4 Qualität auch bei eisigen Temperaturen
Bei unserer professionellen Lithium-Umrüstung ersetzen wir deine bestehende AGM-Batterie(n) durch die leistungsstarke Bulltron Polar Batterie (LiFePO4) und passen deine Ladeinfrastruktur optimal an die Anforderungen moderner Lithiumtechnik an. Das Ergebnis: mehr nutzbare Kapazität, deutlich geringeres Gewicht, schnellere Ladezeiten und maximale Zuverlässigkeit – auch bei winterlichen Temperaturen.
Dank integrierter Zellheizung kann die Bulltron Polar selbst bei Temperaturen bis −30 °C sicher geladen werden, was sie ideal für Ganzjahres- und Winterreisen macht. Das integrierte Batteriemanagement-System (Smart-BMS) mit Bluetooth-Überwachung sorgt für höchste Sicherheit, effizienten Zellausgleich und volle Transparenz über den Batteriezustand.
Da in den meisten Reisemobilen noch keine lithiumfähige Ladeinfrastruktur verbaut ist, umfasst unsere Umrüstung standardmäßig auch den Austausch der Ladetechnik:
- Victron Energy Orion XS 50A als leistungsstarker Ladebooster, der die sichere und effiziente Ladung der Bulltron Polar über die Starterbatterie während der Fahrt gewährleistet
- Victron Energy IP22 Ladegerät, das den 230-V-Landstrom zuverlässig in 12-V-Gleichstrom umwandelt und eine optimale Lithium-Ladekennlinie bereitstellt
Durch diese Komponenten ist sichergestellt, dass deine neue Lithiumbatterie korrekt, schonend und mit maximaler Leistung geladen wird – unabhängig davon, ob du fährst oder am Stromanschluss stehst.
Sollte in deinem Reisemobil bereits eine geeignete lithiumfähige Ladeinfrastruktur vorhanden sein, erstellen wir dir selbstverständlich ein individuelles Angebot zur Lithium-Umrüstung, exakt auf deine vorhandene Technik und deine persönlichen Anforderungen abgestimmt.
Warum setzen wir von VAMPER auf LiFePO4 Lithiumbatterie von BullTron?
- Made in Germany: Entwicklung, Design, Montage und Qualitätskontrolle finden vollständig in Deutschland statt – für maximale Zuverlässigkeit und Präzision.
- Modulares Design – schnelle Reparatur: Alle Elektronik-Komponenten sind verschraubt statt verklebt – im Servicefall können Platinen oder Zellen einfach getauscht werden.
- Deutlich langlebiger als andere LiFePO4-Batterien: Dank hochwertiger Zellen und ausgeklügeltem BMS erreicht BullTron eine bis zu 200 % höhere Zyklenlebensdauer als viele Konkurrenzprodukte.
- Bis zu 45 % kleiner & 35 % leichter: BullTron spart Platz und Gewicht – ideal für Camper, bei denen jeder Zentimeter zählt. Perfekt auch für den Einbau unter den Sitz.
- Intelligentes Batterie-Management-System (BMS): Schützt die Batterie automatisch vor Tiefentladung, Überladung, Überhitzung, Kurzschluss und mehr – für maximale Lebensdauer und Sicherheit.
- Enorme Leistungsreserven: Mit bis zu 300 A Dauerstrom und 1.000 A Spitzenstrom eignet sich BullTron auch für leistungshungrige Verbraucher wie Wechselrichter.
- Bluetooth-App mit voller Kontrolle: Über die integrierte App kannst du Ladezustand, Spannung, Temperatur und mehr in Echtzeit überwachen – und zusätzlich individuelle Lade- und Entladegrenzen festlegen, um dein System perfekt auf deine Bedürfnisse abzustimmen.
Was in unserem Angebot enthalten ist:
- BullTron Polar LiFePO4 Lithiumbatterie (Größe & Variante je nach Auswahl)
- Einbau der Batterie durch unser geschultes Personal in dein Fahrzeug an einer frei zugänglichen, geeigneten Einbaupostion.
- Anpassung deiner Ladeinfrastruktur inkl:
- Victron Energy Orion XS 50A
- Victron Energy IP22 Ladegerät
- Verkabelung und Kleinmatterial
- Funktionsprüfung
- 5 Jahre Garantie (10 Jahre optional)
Mögliche Mehraufwände, die entstehen können:
- Sofern die vorhandene Ladeinfrastruktur nicht für den Betrieb von LiFePO4 Batterien vorgesehen ist, können zusätzliche Komponenten wie z.B. Ladegerät, Ladebooster, etc. benötigt werden.
- Das Paket umfasst den Einbau der Batterie an eine von der Ladeinfrastruktur geeignete und leicht zugängliche Position in deinem Fahrzeug. Eine eventuelle (De)montage von Bauteilen wie Sitzen oder Verkleidungen muss separat kalkuliert werden.
Keine Sorge vor versteckten Kosten: Bevor wir mit der Arbeit beginnen, stimmen wir jegliche Zusatzaufwände und Kosten immer gemeinsam mit dir in einem persönlichen Beratungsgespräch vor Ort ab.
Technische Daten der BullTron Lithiumbatterie
- Nennspannung: 12.8V
- Zyklenlebensdauer (bei 80% Restkapazität): >3500 bei 100% DOD (Entladungstiefe) / >6000 bei 80% DOD (Entladungstiefe)
- Ladeschlussspannung: 14.2 - 14.6V
- Erhaltungsspannung: 13.5 - 13.8V
- Max. Ladestrom: 100A
- Max. Entladestrom: 300A
- Batterie-Management-System (BMS): integriertes Smart BMS mit Balancer
- Überwachung: mit Smartphone App über Bluetooth Verbindung
- Verschaltung: 12V Installation auch als Parallelschaltung möglich, Reihenschaltung auf 24V, 36V, 48V möglich
| Nennkapazität in Ah / Wh | Abmessungen (LxBxH) in mm | Gewicht in kg | |
| Polar 105 | 105 / 1344 | 279 x 175 x 189 | 10,5 |
| Polar 165 | 165 / 2112 | 355 x 175 x 189 | 16 |
| Polar 170 |
170 / 2176
|
267 x 163 x 178
|
15 |
| Polar 185 | 185 / 2368 | 355 x 175 x 189 | 16 |
| Polar 210 | 210 / 2688 | 315 x 155 x 208 | 20 |
| Polar 230 | 230 / 2944 | 355 x 155 x 210 | 21 |
| Polar 270 | 270 / 3456 | 355 x 178 x 189 | 24 |
| Polar 320 Untersitz | 320 / 4096 | 355 x 255 x 190 (inkl. Pole) | 29 |
| Polar 460 | 460 / 5888 | 520 x 240 x 220 | 39.5 |
|
Polar 540 Untersitz |
540 / 6912 |
355 x 350 x 190 (inkl. Pole) | 46,5 |
| Polar 700 Untersitz |
700 / 8.960 |
380 x 360 x 220 |
56 |
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
Need book 2 please :-)
Format: Kindle
From the very first chapter, Metal Slinger hooked me and refused to let go.
Set in a brutal, metal-bound world where power is carved from steel and survival depends on strength, strategy, and sheer will, this story follows a young woman forced into a dangerous system where control over metal isn’t just magic — it’s dominance, protection, and rebellion. When she’s pulled into escalating conflict and shifting alliances, she quickly learns that power always comes with a cost.
The magic system is sharp and immersive without being overwhelming. The way metal manipulation is woven into combat and politics makes every confrontation feel cinematic and high-stakes. It’s gritty, tense, and beautifully layered.
The Brynn, our FMC absolutely shines. She’s fierce but not untouchable, resilient without feeling unrealistic. Watching her navigate betrayal, survival, and the slow awakening of her own strength felt earned every step of the way. There’s grit in her fight scenes and vulnerability in her quieter moments that make her deeply human.
And the tension? Immaculate. The chemistry simmers under the surface before sparking into something electric. Every reluctant alliance, every charged interaction, every moment of “are they about to destroy each other or kiss?” had me flying through pages.
The pacing is relentless — no filler, no wasted scenes. Twists land hard. Stakes keep climbing. And that ending? Absolutely feral. The kind that leaves you staring at the wall for a minute before immediately checking when book two releases.
✨ Gritty metal-based magic
⚔️ High-stakes survival
🔥 Slow-burn tension
🖤 Fierce, layered heroine
💥 A finale that HITS (but cliffhanger!)
This is one of those fantasies that reminds you why you fell in love with the genre in the first place. If this is just Book One, I am more than ready to be emotionally wrecked again in the sequel.
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Reviewed in the United States on February 14, 2026
★★★★★ 5
Read this book! Then join our support group for the ending😜
While I’ve read some amazing books this year, it’s been awhile since I have completely devoured a book in less than 24 hours. This book was one I truly could not put down. I couldn’t fall asleep because I didn’t want to stop reading what happened next.
The way this book starts is one of my absolute favorite ways to fall into a story - with no preamble and immediate conspiring amongst characters.
Brynn has quickly become one of my new favorite FMCs. She is just so REAL. No whining or blaming her situation on everyone and everything else. She accepts her role in the world, but also holds a fierce determination to know the truth of that world. She is brave, yet terrified. Strong, yet self-conscious. She is cunning and intelligent and she doesn’t shy away from what is hard or allow emotion to overcome logic. I feel like she’s such a relatable character in everything that happens to her.
Then we have Kai…our commander and son of the leader. He’s got secrets. Big ones. And the amount of times my feelings for him flipped in this book is insane. I’m still honestly reeling…
Acker, my man…he’s mysterious, yet he doesn’t pull his punches. He’s loyal to a fault. He feels things deeply and he is fervent in his beliefs and desires. I adore him and yet want to shake him for the way he goes about making decisions and only sharing half truths. And right now my heart is aching for him and also terrified of him. When I say I need book 2 like I need water, that’s an understatement.
I don’t have space to discuss every side character, but just know that I love them deeply and they each have big personalities of their own.
The miscommunication honestly feels more like a necessity and less of a trope. The MCs don’t truly know one another, so of course there’s hesitancy to share everything with a stranger who has been somewhat forced upon you due to the situation you’ve both found yourself in. But it also is refreshing to watch them both learn to trust and communicate more and more as they go.
The world building was exciting and unique - unlike anything I’ve read before. The kingdoms and their systems and the unique magics all create this setting that is utterly perfect. I never felt confused, but could easily envision everything as it was explained in detail.
The slow burn and spice was paced so perfectly and realistically that it never felt weird or forced or annoying. It unfolds the way most normal relationships would (minus the magic and fantasy aspects). I truly cheered for our MCs and loved the way they finally came together.
This story takes all the tropes we know and love and twists them into something unique and entirely different than all the other stories we’ve grown used to. And when I tell you that you will NEVER see the plot twists coming, HOLY SMOKES BATMAN!
And the last 2 chapters took me ALL THE WAY OUT. I’m not sure how I’m supposed to be okay after that. I almost want to go back to chapter 55 and pretend the rest didn’t happen…but of course I can’t do that and now I’ll just be dying a little inside every day until I get my hands on book two!
If you enjoy fantasy or romantasy, this has to be your next read. All the rest can wait. Grab your copy YESTERDAY.
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Reviewed in the United States on June 24, 2025
★★★★★ 5
Outstanding book - A MUST READ
This is fantasy romance at its finest, and I couldn’t put it down from the moment I started. Packed with classic romantasy tropes that are done so well, especially my favorite: fated mates!
The world-building is both easy to digest and detailed enough to feel immersive. It strikes the perfect balance—not too vague but never overwhelming. The world is divided between several groups of people, and the story revolves around the Alaha, who live on the water, and the Kenta, who reside on land. For centuries, these two factions have maintained a fragile peace, but things take a sharp turn when our FMC, Brynn, threatens that peace right at the beginning of the book. What follows is a thrilling dive into a world of magic, rebellion, and secrets. I will say no more, because you should go into this book relatively blind to get the full experience.
Brynn, our FMC, is everything you could want in a lead. She’s smart, confident, and refuses to bow to threats. Then there’s the MMC, Acker. Scrumptious doesn’t even begin to cover it. The chemistry between him and Brynn is electric, and their dynamic had me grinning (and swooning) throughout.
This book has all the best romantasy tropes: forced proximity, slowest of slow burns, elemental magic, fated mates (done right), political intrigue, and plot twists you will not see coming! Each trope is executed masterfully, blending seamlessly into the story without feeling overdone. If these are your jam, you’ll absolutely love this book. Even if they are not usually your cup of tea, this book may change your mind.
While the pacing is fast and gripping overall, it does have a bit of a lull in the middle. That said, the ending more than made up for it—it left me gasping and desperate for the next book.
I think I said aloud, “What the hell just happened?” when I finished the last page. This book grabbed me by the neck and didn’t let go. It’s full of banter, twisty turns, and a delicious tension. Probably one of my favorite fantasy reads this year. I am going to be thinking about this book non-stop until book 2 is released!
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Reviewed in the United States on November 30, 2024
★★★★★ 4
Cool world building and great side characters
Format: Kindle
I adored the side characters and found them a lot more compelling than Jovie and Acker, if I’m being honest. I really wanted to like her but I found myself getting frustrated by her lack of, I don’t know, real rage for any of the crap people pull on her. Like ok I get this is romantasy but I have a hard time really believing you’re actually as upset at this guy as you claim to be when two minutes later you’re letting this dude shove his tongue down your throat. Additionally, an early running theme is that Jovie is frustrated that there are a bunch of people deciding things for her but the existence of the whole “matched/bond” thing makes much of her autonomy a moot point. Like at one point I think Acker even points out that them getting into bed together is a “foregone conclusion” and someone else mentions that the other matched pairs that don’t end up together ended up literally destroying each other. No pressure. I was a lot more interested in the characterization of Messer, Beau, and Hallis.
I knew I was going to be exasperated consistently by this girl when she let Mr. Murder Hottie treat Messer like a war criminal after he almost got himself spatchcocked for them by a mighty-morphing radical with an attitude problem. If my homie went through the battle blender like that for me after I found out he had been secretly protecting me and keeping me company for weeks/months, I would be doing A LOT MORE than standing around trying to figure out if I actually thought he was my friend while Captain Boy Toy did some light torture on him. Also Acker, my dude, if you can still find it in your heart and your loins to get riled up while your sister is having a breakdown in the room over…I don’t know, seek help I guess. I liked the juxtaposition of Beau’s bravado and her militaristic delivery of information to her brother showing she can turn on a dime when needed. Adding the mental toll her gift takes on her throughout time and how she has self destructive coping mechanisms really gave her some cool depth, and I appreciated the vulnerability it lent her. Hallis was a weird character for me at first but I ended up looking forward to his dialogue a lot. Initially, I didn’t care for the way he seemed to immediately just be a real jerk to Jovie and it didn’t often read as playful to me when I think it sometimes meant to. Regardless, his genuine care for Beau and Acker and how he dropped the act immediately when they really needed him made him pretty endearing and I always appreciate a grump who cares.
Honestly everything about this book was an A+ for me aside from the two main characters’ dynamic. When Jovie gets pissed at those bats and obliterates a forest? A+ When she tells Acker that she saw the signs that Messer was getting abused and acknowledged she felt shame and that she couldn’t fault him for being complicit in her mistreatment since she had done the same? A+ When she’s sitting there and coming to terms with the fact that everything she knows has been built on lies as she’s flipping through her sketchbook? A++ The writing and setting is great and the book is good, but someone needs to give Jovie a big stick and tell her it’s okay to be mad and smack people with it even if they’re hot.
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Reviewed in the United States on February 19, 2025
★★★★★ 5
Mind blowing page turner
Oh my stars!!! 🤯 he falls first and he falls hard, enemies to lovers, fated mates. Every characters are lovable. There's action, magic, one horse 🤭 and a plot twist that keep on twisting. Oh and a bad ass FMC! Loved it!
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Reviewed in the United States on April 23, 2026