# Battery Charger ER4 RETOO ER1156 for 12 AA/AAA Rechargeable Batteries

**URL:** https://aio.lv/en/product--er4-5907056102885--12364286
**Data updated:** 2026-04-26 18:53 (EEST)
**Category:** Battery chargers
**Manufacturer:** ER4
**Manufacturer code:** 5907056102885
**EAN:** 5907056102885
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 45.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--er4-5907056102885--12364286

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

RETROO ER1156 (brand ER4) is a battery charger designed to recharge up to 12 AA or AAA rechargeable batteries. It supports simultaneous charging of multiple cells, offers automatic charging cycles and safety features typical for consumer chargers. Suitable for home and office use to maintain NiMH/NiCd rechargeable AA and AAA cells for cameras, remotes, toys and small electronics.

## Long description

RETROO ER1156 by ER4 is a compact battery charger designed to recharge up to 12 AA or AAA NiMH/NiCd rechargeable batteries. The charger supports simultaneous charging of multiple cells and provides automatic charging cycles and built-in safety features intended for routine home and office use. It is intended to maintain batteries used in cameras, remote controls, toys and other small electronic devices.
Advantages
The ER1156 offers multi-slot charging for up to 12 AA or AAA cells at once, reducing the need for repeated single-battery cycles. Automatic charging control helps prevent overcharging by terminating the charge when cells reach the appropriate level. The unit is compact and designed for countertop or desk use, with a straightforward insertion layout that makes it suitable for users who need a simple, repeatable charging routine.
Suitable for
Recharging AA NiMH/NiCd batteries for digital cameras and flash units
Maintaining AAA batteries used in TV remotes, gaming controllers and small electronics
Charging multiple batteries for household devices, toys and cordless peripherals
When it may not be suitable
This charger is designed specifically for AA and AAA NiMH/NiCd rechargeable cells and is not suitable for lithium-ion, LiPo or non-rechargeable alkaline batteries. It may not meet requirements for high-speed charging or advanced battery conditioning used by professional technicians. Users who need programmable charge currents, cell-by-cell advanced diagnostics, or fast-charge capabilities should consider more specialized equipment.
Key specifications
Supported cell types: AA and AAA rechargeable NiMH and NiCd
Maximum simultaneous capacity: 12 cells
Charging mode: automatic cycle control with charge termination
Form factor: countertop charger with multiple insertion slots
Intended use: household and office battery maintenance
How to use
Insert AA or AAA NiMH/NiCd batteries into the appropriate slots with correct polarity. Connect the charger to a compatible power source according to the device instructions. The unit will manage the charging cycle automatically and stop charging when cells reach the predetermined level. Allow batteries to cool before removing them and store charged batteries according to manufacturer recommendations for the cells you use.
What to consider before purchase
Confirm battery chemistry: only NiMH or NiCd rechargeable AA/AAA cells are supported
Decide if multi-slot simultaneous charging meets your workflow or if individual cell control is required
Check that the charger's output and features match your expectations for charge speed and safety
Usage recommendations
Use matched batteries of the same capacity and age when charging multiple cells together, charge at room temperature, and consult your battery manufacturer's guidance for optimal storage and cycle practices to prolong battery life.

## FAQ

### How much does the ER4 RETOO ER1156 Battery Charger 12 AA/AAA cost, and is it available for purchase?

The price is 54.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 640 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All ER4 products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ER4 service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12364286/68344007_large.webp