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SCIGOLD 8-Slot Independent Smart Charger — AA / AAA 1.5V Li-ion
1.5V AA / AAA Li-ion

SCIGOLD 8-Slot Independent Smart Charger — AA / AAA 1.5V Li-ion

Portable 8-slot smart charging case for SCIGOLD 1.5V AA and AAA Li-ion batteries. Independent per-cell charging, USB-C input, titanium silver aluminum-alloy body, fits in a coffee mug.

8
Charging slots
AA + AAA
Mixed freely
USB-C
5V / 3A input
109 g
Pocket-sized
SKU
SG-C00H-0508
Price In stock · ships now
$34.99

Specs at a Glance

Everything in the spec sheet.

  • 8 independent charging slots — each cell charges to its own optimal voltage
  • Mixed AA + AAA in any combination — universal pin-style contacts
  • USB-C input — 5V / 3A from any phone charger, laptop, or power bank
  • Aluminum alloy + ABS body — Titanium Silver finish
  • Pocket-sized: 72.9 × 77.4 × 55.2 mm · 109 g

8 Slots. 1 Cable. Charge Anywhere.

A standalone smart charging case for SCIGOLD 1.5V AA and AAA Li-ion cells. Drop in up to 8 cells in any AA/AAA mix, plug a USB-C cable into anything that puts out 5V — phone charger, laptop USB-C port, GaN brick, power bank — and walk away.

The charger handles per-cell voltage termination independently. Mix four nearly-dead AAAs and four full AAs in the same case — each one charges to its own correct voltage and stops when it’s done. No matching pairs. No babysitting.

Specifications

AttributeValue
ModelCW508
Compatible chemistries1.5V AA / AAA Li-ion (SCIGOLD or compatible)
Slots8 independent (AA / AAA mixed)
InputUSB-C · 5V / 3A
OutputDC 1.5V per slot
Charging current360 mA × 8 (per slot)
Dimensions72.9 × 77.4 × 55.2 mm
Weight109 g
Body materialAluminum Alloy + ABS
ColorTitanium Silver
SKUSG-C00H-0508

Why a Charging Case (Not a Cradle)

A normal 4-slot rectangular charger sits permanently on your desk. This one closes into a coffee-mug-sized cylinder — toss it in a camera bag, glovebox, or carry-on. The 8 slots are arranged around a center post inside the lid; the contacts only touch when the lid is fully closed.

That means:

  • Cells stay protected from short-circuit when transit
  • No exposed contacts attracting metal debris
  • It looks like a small thermos, not a piece of electronics
  • TSA-friendly carry-on

Pairs With

The CW508 is designed for SCIGOLD’s 1.5V AA Li-ion family. Best paired with:

  • AA 4-Pack flagship (4,440 mWh × 4 cells with thin smart case) — the daily-driver kit
  • AA 4-Cells Only (no case) — fill the rest of the CW508’s 8 slots
  • AA Family Bundle (8 cells + this CW508 8-slot charger) — the household kit, save ~$15 vs buying separately

The CW508 is also compatible with most third-party 1.5V AA Li-ion brands using standard pin-style contacts, but voltage termination is calibrated for SCIGOLD cells.

What’s in the Box

  • 1 × SCIGOLD CW508 8-Slot Smart Charger (Titanium Silver)
  • 1 × USB-C charging cable (1m, black)
  • 1 × User guide

Cells sold separately.

When to Buy CW508 vs Smart Case

ScenarioBuy
Daily nightstand charger for 4 AAsAA 4-Pack flagship (thin smart case included)
Charging 6+ cells at once / mixed AA + AAACW508 (this product)
Replacement / second charger for travelCW508
You bought cells-only and need a chargerCW508

Related:

How It Works

Full in 2 hours. Four steps.

  1. 1

    Drop the cells into the charger

    Place your SCIGOLD AA 1.5V Li-ion cells into the CW505 4-slot or CW508 8-slot charger, matching the + and − terminals shown in each slot. The smart chip recognizes SCIGOLD cells automatically.

  2. 2

    Connect any USB-C power source

    Plug a USB-C cable into the charger and connect it to any 5V/3A source — a phone wall charger, laptop USB-C port, GaN brick, power bank, or car charger. No proprietary adapter needed.

  3. 3

    Watch the per-cell status display

    The LCD (CW505) or per-slot LED (CW508) shows each cell charging independently. A nearly empty cell and a half-full one both charge to their own correct 1.5V target and stop when done.

  4. 4

    Done in about 2 hours

    Four cells charge from empty to full in roughly 2 hours at 5V/3A. Charging stops automatically when each cell is full — the Smart Protection System guards against over-charge, over-temperature, and short-circuit, so it is safe to leave plugged in.

Frequently Asked

Quick answers, before you buy.

Can the CW508 charge 8 batteries at once?

Yes. The CW508 has 8 independent charging slots and charges all 8 cells simultaneously, not in sequence. Each slot draws its own current and terminates on its own, so a full case of 8 cells charges at the same time without slowing each other down.

Does the CW508 charge AA and AAA batteries together?

Yes. Every slot accepts either size, so you can mix AA and AAA freely in any combination across the 8 slots. The universal pin-style contacts fit both form factors, and each cell is charged to its own correct 1.5V Li-ion target regardless of which sizes you load.

What does independent per-slot charging mean?

Each of the 8 slots monitors and terminates its own cell separately. A nearly empty battery and a half-full one in the same case each charge to the correct voltage and stop when done. You never need matched pairs or sets, and one weak cell will not affect the others.

Does the CW508 come with batteries included?

No. The CW508 is a charger only. The box includes the charger, a USB-C charging cable, and a user guide. Cells are sold separately. Pair it with a SCIGOLD AA 4-Pack or the AA Family Bundle, which includes this charger plus 8 cells together.

What power input does the CW508 need?

The CW508 charges over USB-C and accepts 5V at up to 3A from almost any source: a phone wall charger, a laptop USB-C port, a GaN brick, or a power bank. A USB-C cable is included in the box. There is no separate proprietary adapter to keep track of.

Can the CW508 charge AAA batteries?

Yes, the hardware fully supports AAA cells in every slot. Note that SCIGOLD 1.5V AAA Li-ion cells are not yet available on their own, but the charger is built and calibrated to handle AAA the moment you have them, alongside or instead of AA cells.

From the Lab

Read before you decide.

SCIGOLD 8-Slot Independent Smart Charger — AA / AAA 1.5V Li-ion

1.5V AA / AAA Li-ion

8-Slot Independent Smart Charger — AA / AAA 1.5V Li-ion

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