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Four rectangular lithium-ion batteries and a compact dual-slot USB charger with LCD screen

Kastar

Kastar NP-F550/F570 4-Battery Pack with LTD2 USB Charger

SKU CH-6G11-VRHV3

Four 7.4 V 2900 mAh lithium-ion batteries with a dual USB charger that powers two at once via Micro-USB or Type-C

  • Total capacity21 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions5 × 3 × 3 in
  • Key featuresLCD USB Dual charger, can charge 2 batteries at the same tim
  • Four 2900 mAh lithium-ion batteries power extended shoots
  • 21 Wh capacity per cell delivers reliable runtime
  • Dual-slot USB charger fills two packs simultaneously
  • Micro-USB and Type-C inputs enable flexible recharging
  • LCD screen shows real-time charge level for each battery

Four-Battery Pack with Dual USB Charger

This set delivers four NP-F550/F570 lithium-ion batteries and an LTD2 charger that powers two cells simultaneously. Each battery stores 2900 mAh at 7.4 V for 21 Wh of capacity. The charger accepts Micro-USB or USB-C input at 5 V 2-3 A and outputs 8.4 V at 800 mA per slot. An LCD panel shows charge status and remaining capacity for each battery.

Replaces Proprietary Sony InfoLITHIUM Packs

The batteries substitute for Sony NP-F330, NP-F550, NP-F570, NP-F730, NP-F750, NP-F770, NP-F950, NP-F960 and NP-F970 packs used in Handycam, Cyber-shot and DCR camcorders. Swapping to this kit is worthwhile when original cells no longer hold a full day’s charge or when a shoot demands more spares than a single OEM battery provides. The dual-slot charger cuts total recharge time compared with single-bay units.

USB Power Input Limits Field Use

Charging relies on any 5 V USB source delivering at least 2 A, so a standard power bank or wall adapter works. The 15 W input ceiling means both slots share 800 mA each; charging four batteries requires two cycles. No AC cable is included, and the charger cannot operate from 12 V vehicle sockets without a separate USB adapter. The fixed NP-F plate prevents charging other battery form factors.

How it compares

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

Price $28.99
Pricier than about 76% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-F550 NP-F570
Part numberCH-LTD2-4B-F570-X
Total capacity21 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions5 × 3 × 3 in
In the box
Pack contents1 Charger + 4 Batteries

Other versions of this model

5 more in the same range

Questions about this item

What battery models does the LTD2 charger accept?

The charger works with NP-F330, NP-F550, NP-F570, NP-F730, NP-F750, NP-F770, NP-F950, NP-F960 and NP-F970 packs.

Which USB ports power the LTD2 charger?

It has Micro-USB and Type-C inputs; a Micro-USB cable is included. Use a 5 V 2-3 A source for full 15 W input.

How long will the 21 Wh lithium-ion packs hold usable capacity?

Expect 300-500 full cycles before capacity drops below 80 %. Store at 40-60 % charge if unused for weeks.

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