For charging and diagnostics I used the Knnwei KW600 battery tester purchased here http://ali.pub/3wasmi Kulon 912 charger link to the manufacturer http://balsat.ru/zaryadki_akb.php#kul... Orion load fork https://orionspb.ru/vilki/841/ On the ET forum in the topic Battery restoration with small currents according to Branimir you can independently study the process of restoration with small currents in more detail. https://electrotransport.ru/ussr/inde... I will be GRATEFUL for your thanks in rubles. You can send thanks to my Tinkoff bank card 5536 9138 4792 9664 Below is a list of all the products from Ali Express that help me a lot in my workshop. Digital current clamp meter HP-570C-APP with the ability to connect via Bluetooth to the phone. English: http://alii.pub/5yotuj http://alii.pub/647jg5 Brushes for cleaning terminals. http://alii.pub/5you1x http://alii.pub/5you76 Multifunctional tester for lead-acid batteries from KONNWEI KW710. http://alii.pub/5yklfi Modular 4-wire load (without case) 600W 200V 40A. http://alii.pub/5wg1yp There is also this load in a white case. http://alii.pub/5yothw The load in the blue case comes complete. http://alii.pub/5wg1v0 Inverter 12v. - 220v. Nominal power - 2000W, peak - 4000W http://alii.pub/5youm5 Refractometer for measuring the density of the electrolyte. http://alii.pub/5youtq KONNWEI KW650 Battery Tester. http://alii.pub/5youyl KONNWEI KW600 Battery Tester http://alii.pub/5yov6r KONNWEI KW 210 Battery Tester. http://alii.pub/5yoveq 2 in 1 Lancol CAT200 Battery Charger and Tester. http://alii.pub/5yovky BM2 Bluetooth Battery Monitoring for Android IOS. http://alii.pub/5yovsc 9.99A 60W 30V Electronic Load. http://alii.pub/5yovyr 150W 60V 10A Electronic Load. http://alii.pub/5yow5y EBD-A20H Electronic Load for Battery Testing. http://alii.pub/5yowdx EBC-A10H Electronic Load. http://alii.pub/5yowp7 UNI-T UT210E low-current current clamp meter. http://alii.pub/5yowvm MASTECH MS2109A current clamp meter. http://alii.pub/5yowyx KONNWEI 902 adapter for engine diagnostics. http://alii.pub/5yox30 24V, 12V oil pump for engine oil change. http://alii.pub/5yox5q Electronic brake fluid tester. http://alii.pub/5yoxa0 Reliable, durable (has been working for three years already) accurate tire inflation gun. http://alii.pub/5yoxf2 Tool for replacing brake pads. http://alii.pub/5yoynl A set of special tools for replacing the rear pads on any car. http://alii.pub/5yoyyo A tool for non-disassembling flushing (cleaning) of engine fuel injectors. http://alii.pub/5yoz7t Set of wrenches with a ratchet mechanism. http://alii.pub/5yozhx Electromagnetic induction heater (an indispensable thing for unscrewing rusted nuts and bolts). http://alii.pub/5yozqo