Head-to-head · Best Car Battery Chargers

BLACK+DECKER BC15BD vs CTEK MXS 5.0

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

CTEK MXS 5.0 comes out ahead by a narrow margin (4.4 vs 4.7). The gap is mostly about AGM battery owners, motorcycle and RV winterization, and long-term storage maintenance where charging algorithm sophistication beats raw amps — read the strengths below before deciding.

BLACK+DECKER BC15BD

Ranked #5 in Best Car Battery Chargers

BLACK+DECKER BC15BD

4.4

$80

The BC15BD is the all-in-one bench charger pick. The 40A engine-start function is unique in this round-up — when a battery is too dead to start the car, this charger can jump it. The LCD display is more informative than the NOCO Genius LEDs or the CTEK's status lights, and the Alternator Check is a useful diagnostic. Trade-offs: 12V lead-acid only (no lithium, no 6V), bench-style form factor, and the shortest warranty in this lineup (1 year).

Strengths

— Built-in 40A engine-start function — only pick here that can jump-start a car
— Backlit LCD with charging-status icons and voltage display
— Patented Alternator Check evaluates battery voltage under load

Watch-outs

— 12V only — no 6V support like the NOCO Genius series or Schumacher SC1280
— No lithium battery support — lead-acid (incl. AGM, gel, deep-cycle) only
— Bench-style design needs flat workspace — not as mountable as the NOCO chargers

$80 · Check Price on Amazon Full review →

Higher ratedRanked #3 in Best Car Battery Chargers

CTEK MXS 5.0

4.7

$120

The MXS 5.0 is the AGM-battery and long-term-storage specialist. CTEK's 8-stage charging program is the most sophisticated in consumer chargers, and the IP65 enclosure means it can live on the bench in a damp garage without issue. The 5-year warranty beats every other pick here. The trade-off is amps — 4.3A is slower than the NOCO Genius 10 and far slower than the 15A Schumacher SC1280 or BLACK+DECKER BC15BD. Buy this if you have AGM batteries, motorcycles, or a winterized boat or RV.

Strengths

— 8-stage charging program — most sophisticated automatic algorithm in this round-up
— Best-rated charger for AGM batteries by multiple 2026 review roundups
— Splash- and dust-proof IP65 enclosure — outdoor and motorcycle-friendly

Watch-outs

— Most expensive pick here at $120
— 4.3A output is slower than the NOCO Genius 10, Schumacher SC1280, BLACK+DECKER BC15BD
— 12V only — no 6V support like NOCO Genius series or Schumacher SC1280

$120 · Check Price on Amazon Full review →

How they stack up

BLACK+DECKER BC15BD

Only pick with built-in engine-start. Tied with the Schumacher SC1280 on 15A speed and on lead-acid-only chemistry. Shortest warranty in this lineup (1-year vs 2-year Schumacher, 3-year NOCO Genius 5/10, 5-year CTEK MXS 5.0). LCD display more informative than the LEDs on the NOCO Genius 5/10 or CTEK MXS 5.0.

CTEK MXS 5.0

Best AGM/storage maintenance pick. Most sophisticated charging algorithm among these — beats the simpler 3-stage NOCO Genius 5/10, Schumacher SC1280, and BLACK+DECKER BC15BD. Slowest amp rating (4.3A) but the longest warranty. 12V-only — NOCO and Schumacher picks here support 6V too.

Specs side-by-side

Spec	BLACK+DECKER BC15BD	CTEK MXS 5.0
Amps	15A charge / 40A engine start	4.3A
Voltage	12V only	12V only
Chemistry	Lead-acid (AGM, gel, deep-cycle)	Lead-acid (incl. AGM, gel, calcium)
Engine Start	40A boost	—
Display	Backlit LCD with icons	—
Warranty	1-year	5-year
Recovery Mode	24-hour reconditioning cycle	Recond mode (reconditioning)
Charging Stages	3 (fast, top-off, trickle)	8
Enclosure	—	IP65 splash/dust-proof

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