Comparison · Chargers

BlitzWolf BW-S4 or 12.6 V 3 A charger

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Test current: BlitzWolf BW-S4 (10 A vs. 3.23).

Model	BlitzWolf BW-S42017Read review →	12.6 V 3 A charger2017Read review →
Test current, A	10	3.23
Under load, V	5.04	12.68
Review conclusion	Recommended	With reservations

Only in one review: Voltage 5 V (BlitzWolf BW-S4); Current 10 A (BlitzWolf BW-S4); Ripple 200 mV (BlitzWolf BW-S4); Efficiency 89 % (BlitzWolf BW-S4); Protection 2.9 A (BlitzWolf BW-S4); Temperature rise 102.8 °C (12.6 V 3 A charger); Price 8.13 $ (12.6 V 3 A charger).

BlitzWolf BW-S4: It delivers the rated 10 A efficiently without overheating; the author liked it, though ripple is somewhat high.

12.6 V 3 A charger: The inexpensive charger works, but its voltage and current are too high, it overheats, and it needs modification.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.