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Four rectangular lithium-ion camera batteries in a pack

Kastar

Kastar 4-Pack BP-820 Li-Ion 2050mAh 7.4V 15.2Wh camera battery

SKU CH-18DA-X4HFQ

Four-pack of 7.4V 2050mAh Li-ion batteries compatible with Canon BP-820 and BP-828 camcorders

  • Total capacity15.2 Wh
  • Pack contents4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 3 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Longer shoots with 2050mAh high-capacity cells
  • Safe operation backed by UL1642 & CE standards
  • Ready for Canon XA10, XA11, XA15 and more
  • Four batteries in one pack for extended power
  • Built-in protection against over-charge and over-heat

Four-pack replacement for Canon BP-820

This set supplies four lithium-ion cells rated at 7.4 volts and 2050 milliampere-hours each, giving 15.2 watt-hours per unit. They fit Canon XA-series camcorders from XA10 through XA55, VIXIA HF G21 to G60, GX10 and XF400 or XF405 models. The pack suits operators who need several spares for long shooting days.

Capacity and headroom for extended shoots

Each cell stores 15.2 Wh, so the four-pack delivers roughly 60 Wh total — enough for multiple hours of 4K recording on compatible cameras. Runtime scales with bitrate and display brightness; very high-bitrate modes or continuous LCD use will deplete a single battery faster. Users needing uninterrupted full-day coverage should plan to rotate cells or add external power.

Thermals, noise and power draw in normal use

Lithium-ion chemistry runs silently and generates minimal heat during typical camcorder loads. Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating, meeting UL1642 and CE safety standards. The charger (Canon CG-800) manages current automatically, so no extra cooling or noise consideration is required.

How it compares

Measured against everything we stock in Camera Batteries, Grips & Chargers, at today’s prices. Recalculated every night.

Price $63.99
Pricier than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBP-820
Part numberBA-4B-BP820-A
Total capacity15.2 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents4 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Will the 7.4V 2050mAh packs charge on the Canon CG-800 charger I already own?

Yes, the BP-820 replacements are listed as compatible with the Canon CG-800 charger, so the four batteries can be charged on that existing unit.

How can I verify each 15.2Wh cell is holding charge after first use?

Insert a battery into a compatible camcorder such as the VIXIA HF G60 or XA40 and confirm the on-screen capacity indicator shows full; the built-in protection circuit also prevents over-charge and over-discharge.

Does the 4-pack include a charger or only the BP-820 batteries?

The package contains four Li-Ion BP-820 batteries; a Canon CG-800 or equivalent charger must be purchased separately if you do not already have one.

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