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Four Canon-compatible Li-Ion batteries and a compact quadruple USB charger with Type-C and Micro-USB inputs

Kastar

Kastar BP-820 4-pack battery and quadruple charger

SKU CH-3D4K-Y27S9

Four lithium-ion batteries and a USB charger that powers four packs simultaneously for compatible Canon camcorders

  • Total capacity15.2 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3.5 × 2 × 2.5 in
  • Key featuresQuadruple USB charger, can charge 4 batteries at the same ti
  • Charges four batteries simultaneously with the quadruple USB charger
  • Intelligent display shows charging status and remaining capacity
  • Two USB inputs — Micro-USB and Type-C — with Type-C cable included
  • 2050 mAh lithium-ion cells deliver 15.2 Wh per battery
  • Compatible with over twenty Canon camcorder models including XA and VIXIA series

Kastar BP-820 four-battery kit

The pack supplies four lithium-ion cells rated at 7.4 V and 2050 mAh each, giving 15.2 Wh per unit. It targets videographers using Canon XA and VIXIA camcorders that accept BP-820 or BP-828 batteries. The set includes a single charger able to replenish all four packs simultaneously.

Quadruple charger with dual USB inputs

The charger accepts 5 V at 2-3 A through either Micro-USB or Type-C and delivers 8.4 V at 800 mA for one or two batteries or 500 mA for three or four. An on-board display shows charge status and remaining capacity for each slot. Interchangeable plates allow the same dock to serve other Canon battery types.

Thermal and power profile

Each cell stores 15.2 Wh at 7.4 V, so normal camcorder draw stays well within the charger’s 15 W input limit. The intelligent circuit regulates current per bay, preventing excess heat while charging up to four packs at once. No active cooling is required during typical indoor use.

How it compares

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

Price $82.99
Pricier than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBP-820
Part numberLHD4-4B-BP820-C
Total capacity15.2 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3.5 × 2 × 2.5 in
In the box
Pack contents1 Charger + 4 Batteries

Other versions of this model

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Questions about this item

How long will the 2050mAh capacity last in a Canon XA70?

The 7.4V 2050mAh lithium-ion cells provide 15.2Wh each; actual run-time depends on the camera's power draw and recording settings.

What does the 8.4V 800mA output mean when charging four batteries?

The charger delivers 8.4V at 800mA for one or two batteries, dropping to 500mA each when three or four are inserted simultaneously.

Will the 3.5 by 2 by 2.5 inch charger fit in a standard camera bag pocket?

The compact charger measures 3.5 x 2 x 2.5 inches and includes Micro-USB and Type-C inputs with a Type-C cable supplied.

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