AA/AAA Battery Charger · RANK 06

XTAR XTAR L4 Pro — AA/AAA Battery Charger

XTAR

XTAR L4 Pro

USB-C and independent charge, discharge and refresh modes fit a compact €13.40 body; fixed 0.5 A current and limited termination evidence keep it below simpler documented rivals.

$15 typical

EDITION 01RESEARCHED 2026-10-063 SOURCESREFRESH DUE 2027-04

SUBSTANCE SCORES

substance6.8/ 10
design6.0/ 10
value6.5/ 10

WHY THE PRICE IS JUSTIFIED

At a very low price it provides four independent channels and discharge/refresh modes. Independent testing of four IKEA Ladda cells found 2424 mAh average versus 2443 mAh using STENKOL, supporting practical charging equivalence rather than a timer-only design. Full NiMH termination waveform data is not available.

CRITERIA

7/10
Charge TerminationPublished NiMH cutoff is 1.45 V ±0.1 V; independent testing found practical capacity equivalence but no full termination trace.
9/10
Independent ChannelsIndependent testing says all four battery slots run independently.
6/10
Thermal ControlNo independent controlled thermal measurement or temperature display was found.
3/10
Capacity AccuracyIt has no analyzer capacity function; the comparison measured delivered charge, not calibrated discharge capacity.
8/10
Usability FitUSB-C, compact size and Charge/Discharge/Refresh modes are convenient.
7/10
Build ReliabilityCurrent retailer availability and practical independent testing support ordinary consumer use; internal construction is undocumented.
7/10
Charge EfficiencyFixed 0.5 A charging is reasonable for most AAA but slower for high-capacity AA cells.

IDEAL FOR

  • ·Budget-conscious AA/AAA users
  • ·Users wanting refresh mode and USB-C
  • ·Mixed NiMH and 1.5 V Li-ion AA/AAA users

NOT FOR

  • ·Users needing selectable current
  • ·Capacity analysis or internal-resistance measurement
  • ·Users without a suitable USB power supply

DESIGN & ERGONOMICS

Small USB-C charger with compact slots and a basic status display. It is convenient and modern, but needs a separate 5 V/2 A supply and offers no selectable lower current for small AAA cells.

LONGEVITY

No verified spare-parts or repair information was found. USB-C reduces adapter obsolescence, but fixed-current electronics and undocumented serviceability leave long-term repair uncertain.

PRODUCT PHOTOS

XTAR XTAR L4 Pro
Rehosted · goughlui.com
XTAR XTAR L4 Pro
Rehosted · cdn11.bigcommerce.com
XTAR XTAR L4 Pro
Rehosted · m.media-amazon.com

EVIDENCE (3)

baterija.lt

SPEC

www.audioreviews.org

REVIEW

www.xtar.cc

SPEC

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Part of AA/AAA Battery Charger · Edition 01 — see the full ranking