NANO-20 Version History

NANO-20 Version History

Current version c2.6

• parameter adjustment is more convenient;
• all modes now use an updated regulator response with an expanded scale in the low-value area;
• this allows more precise low-current adjustment and easier parameter selection;
• example: earlier the middle of the scale was about 10 A, now it is about 5 A; the maximum value remains unchanged at 20 A;
• firmware version is displayed during startup;
• charging program updated: PR.1 is available instead of CC.2.

Version c2.5

• in CC1 and CC2 programs, charge-current adjustment from 0.1 A was corrected
• program keys received a switching delay for improved noise immunity
• the top-up stage of the fully automatic AAt program was improved

Version c2.4

• switching between CAt, AAt, CC1, CC2, and discharge is available when the control knob is in the far-left position

Version c2.3

• OFF indication was added in manual charge when the control knob is in the far-left position
• if a program was selected with keys, the knob must be moved to the far-left position first and then set to the required current

Version c2.2

• in CC1 and CC2, a second digit after the decimal point was added for charge-current indication below 10 A

Version c2.1

• smooth fan-speed control was added depending on device temperature
• E7 and E8 now monitor battery condition at the initial stage

Version c2.0

• automatic restart was added to CAt for use in uninterruptible power systems
• fan operation algorithm was changed

Version c1.9

• charger programs can be configured without connecting a battery

Version h1.9

• E7 and E8 display was corrected for batteries over 190 Ah
• E9 factory reset behavior was corrected when setting end-of-charge voltage

Version 1.8

• P1, P2, and E9 received current setting to the second decimal digit
• E5 and E6 received over-discharge protection
• factory reset option was added

Version 1.7

• in P1, the green LED lights up when end-of-charge voltage is reached
• E7 and E8 switch to 13.6 V maintenance mode after recovery completes

Version 1.6

• E6 discharge with voltage-drop-rate monitoring was added
• A3 fully automatic program was added
• battery charge-state assessment was added

Version 1.5

• discharge module was added
• in P2, the green LED lights up at 13.5 V

Version 1.4

• charge amp-hour counter indication was added
• charge-time indication was added
• P1 CC-CV charge program was added