just to let you know, there were only two wars, also I think in one or two battles singhs had more men or they had more artillery.
singhs put up a big fight, dogras screwed them over in the last battle in the 1st war, because the army could not retreat because the river was behind them, they could either be killed by british forces or drown trying to get to the other side of the river, while tej singh fled in his own boat.