Daewoo 0.78kWh Deep-Cycle Battery 12V (DS-100)

Note: The entry point of Daewoo's UPS and solar range and the smallest they make, with a 6-month warranty. At 65 Ah it suits a single-room backup rather than a solar bank. Flooded flat-plate deep-cycle lead-acid: cheaper per nameplate kWh than tubular, shorter cycle life, and it needs topping up and ventilation. Compare it against a tubular battery on price per usable kWh over the life of the battery, not on sticker price. Daewoo publish no cycle life at all - not a number, not a curve, nothing at any depth of discharge. That is the single most important figure for a solar battery and its absence is the main thing to weigh against the price. The usable figure shown is derived at the 50% depth that flooded flat-plate lead-acid is conventionally sized around, not a manufacturer statement. Daewoo publish no dimensions or weight for this model. Rs 15,340 is Daewoo's own current price on daewoobattery.com, which includes doorstep delivery and installation in major cities.