InfoLithium Battery Guide

What is InfoLithium?

InfoLithium is Sony's proprietary lithium-ion battery system that includes a built-in microchip. This chip communicates remaining capacity to the camera, allowing it to display an accurate minute-based battery life estimate instead of a vague bar graph.

The "Info" in InfoLithium refers to this intelligent capacity reporting. Every digital floppy and CD Mavica uses InfoLithium batteries from the NP-F series.

The NP-F battery family

All Mavica-compatible batteries share the same physical interface — the "L-type" mounting plate with a keyed rail that slots into the camera's battery compartment. The difference between models is physical size and capacity.

*Shot counts are approximate, assuming LCD on, moderate zoom use, and flash off. Actual results vary widely depending on model, ambient temperature, and flash usage.

Compatibility matrix

All NP-F batteries are physically compatible with all digital Mavica models. The NP-F970 is significantly larger and will protrude from the battery compartment — it works but makes the camera unwieldy. The NP-F550 is the sweet spot for most users.

Charging

Original Sony chargers

The BC-V615 is a simple cradle charger — drop the battery in, plug it in, wait 2–4 hours. It's the most common and recommended charger.

The AC-V700 can charge a battery while simultaneously powering the camera, making it useful for desk/studio work.

Third-party chargers

Modern third-party NP-F chargers are widely available ($10–25) and often support dual-slot and USB-C charging. Look for chargers that:

• Support NP-F330/F550/F970 (all sizes)
• Show charge status (LED or LCD display)
• Have overcharge protection

Charge times

Buying batteries in 2025+

Original Sony NP-F batteries

Still manufactured by Sony and sold new. These are the most reliable option:

• NP-F550: ~$50–65 USD
• NP-F970: ~$80–100 USD
• NP-F330: Discontinued, but NOS (new old stock) available for ~$20–30

Third-party NP-F batteries

Dozens of manufacturers make NP-F compatible batteries. Quality varies enormously:

Recommended brands: Wasabi Power, Watson, Kastar, Neewer — these are well-reviewed and widely used in the video/film industry (NP-F batteries are also the standard for LED video panels and field monitors).

Avoid: Unbranded ultra-cheap batteries (<$10) from unknown sellers. These often have wildly inaccurate capacity claims and may lack proper safety circuits.

Capacity reality check

Third-party batteries frequently overstate capacity. A battery labeled "7800 mAh" typically delivers 5000–6000 mAh in practice. Genuine Sony batteries are conservatively rated and deliver close to their stated capacity.

Battery health and storage

• Storage charge: Store batteries at roughly 40–60% charge. Fully charged lithium-ion batteries degrade faster in storage.
• Temperature: Avoid leaving batteries in hot cars or direct sun. Lithium-ion batteries lose capacity permanently when exposed to temperatures above 45°C.
• Cycle count: NP-F batteries are rated for roughly 500 charge cycles before capacity drops to 80%. A third-party battery may have a shorter cycle life.
• Reconditioning: If a Mavica shows inaccurate battery level readings, the InfoLithium calibration may need resetting. See our dedicated article on battery reconditioning.