Bosch S5A11 Car Battery 80A / h-800A | AGM Lead-acid for Vehicles with a Start/Stop System, 315 x 175 x 190 mm - For Vehicles with Regenerative Braking

I’ve been using this Bosch car battery for two weeks now and, honestly, so far so good. No issues at all with starting, even on colder mornings, which was something I was slightly worried about before fitting it. One thing I noticed pretty quickly, and this was actually a nice surprise, was the start-stop system. It hadn’t been working for a couple of years before, so I’d kind of forgotten about it. But after installing the new battery, it started working again after about 3 miles of driving and has been fine ever since. That alone makes me think the old battery was definitely past its best. The fitment was straightforward on my W213 (2017 diesel), and everything just worked as it should. No warning lights, no coding issues, nothing unexpected. Price-wise, it’s also very competitive. Compared to places like Halfords or Kwik Fit, this felt like much better value for money, especially considering the quality. Overall, I’d recommend it, especially if your start-stop hasn’t been working and you suspect the battery might be the cause. In my case, it seems that was exactly it.

Arrived in very good time and a 'too good to be true price' for a Bosch A series AGM battery? Checked on arrival, 100% health (very well packed in sturdy box and packing) and 100% charged with very good internal R of 2.78 mOhms. A 100% new battery and another happy customer. Buy with confidence and ignore any negative remarks below.

Does what it's meant to do. The stop start function on the mercedes reactivated immediately

Excellent Value, Manufactured Nov' 2025 leaving 4.5 years Manufacturers Warranty + Vehicle now performs better than ever 5*

Good quality battery at a good price

Ordered and was delivered a day early, pleasantly surprised. Fit as expected. However this is either not an original Bosch Battery or not a new battery does not start first time when weather is cold have taken it on long run to ensure charge and still same issue have had the battery three days and returning. Had to go to Halfords to get confirmation that the battery is not new.

Great replacement item for my 2016 Kia Sportage. Fits perfect and easy to swap old one out.

great value for money and a good quality battery

Puur bedrog Batterij besteld en helemaal iets anders aangekregen, ik moet nu zelf 36€ ophoesten om het terug te sturen. Nooit meer !!!!!!!!!!

Was soll ich schreiben, qualitativ hochwertige AGM Starterbatterie, die unauffällig und zuverlässig im Hintergrund ihren Dienst tut. Alte ausgebaut, neue eingebaut, kurz mit Carly angelernt und gut ist. Ne Menge Geld habe ich auch noch gespart. Start Stop funktioniert wieder, alles gut. Mal sehen, ob sie auch 10 Jahre hält, wie die alte Batterie.

Bosch est de la bonne qualité et le prix est super intéressant

バッチリ復活しました！車両はベンツE350 ブルーテックステーションワゴン W212です。 最後は完全にバッテリーが死んでいたみたいで。エアサスもセルもピクリともしませんでした。ブースターケーブルで新品のバッテリーから繋いでもダメなんですね。古いバッテリーは外して新しいのを付けないと。知らなかった。。。セルモーターや他まで死んでしまったかと思ってしまいました。

Nieuwe accu gekocht voor Mercedes e (w212) Start stop was al een tijd ermee gestopt en plotseling vesprong de klok ook nog. Auto startte altijd prima maar na wat onderzoek bleken bovenstaande problemen vaak door went e lage accuspanning te komen. ACCU vervolgens besteld. Duurde wel even voordat hij binnen kwam (denk 14 dagen ong) Vervolgens niet direct aangesloten maar eerst aan een dure lader gehangen die hem ook uitleest op ditzelfde moment. Wat mij opviel was dat de accu maar voor 80%vol was. Nu weet ik niet of dit normaal is, maar ik had verwacht dat dit toch wel 95+ zou zijn. ACCU verder prima en degelijk en zeer mooie prijs op amazone in vergelijking met een garage.