> Yra toks paprastas variantas:
> http://www.fedingas.lt/mw-traveller-bateriju-pakrovejas-4xaa
>
> Pats išsijungia, prieš pabaigą trickle chargina, dar moka ir refreshą daryt, nors niekad netikrinau rezultato.
>
> Maitblokis 12V, tai lengva mašinoj pajungt.

is piguvos salyginai idomus:

http://www.skytech.lt/06455-whitenergy-ikroviklis-4aa4aaa-highspeed-1800ma-lcd-p-118814.html
11.79€ / 40.71Lt

http://www.whitenergy.com/Ladowarki/Uniwerslane_R3_R6/Charger_1800mA_High_Speed_LCD/4x_AA_AAA/product/06455/11/111/

AAA 1x900mA|2x450mA|3, 4x 225mA
AA: 1x1800mA|2x900mA|3, 4x 450mA

1. Charging process is controlled by a processor:
a) automatic sustaining of battery charge condition (protection against overcharging);

b) battery refreshing function: if battery voltage falls below 0.9 V, the charger will restore correct voltage 1.2-1.25 V.

2. The charger has 4 separate charging channels, thanks to which you can charge 1, 2, 3 or 4 AA or AAA batteries (Ni-MH or Ni-Cd) 
discharged to a different extent.

3. Protections: against battery overcharging, against short-circuit, against cell overheating (60ºC), against installing 
inappropriate/damaged batteries or in bad polarization (charging disconnection).

4. LCD display shows information about:
a) charger status;
b) charging condition of different batteries (after charging batteries the text "CHG" will appear);
c) detection of inappropriate/damaged cell or their wrong polarization (over the relevant battery, battery drawing and message 
"ERROR" will be displayed).