if (value instanceof ItemStack) {
final ItemStack stack = (ItemStack) value;
final Item item = stack.getItem();
if (item instanceof IElectricItem) {
final IElectricItem electricItem = (IElectricItem) item;
output.put("canProvideEnergy", electricItem.canProvideEnergy(stack));
output.put("charge", ElectricItem.manager.getCharge(stack));
output.put("maxCharge", electricItem.getMaxCharge(stack));
output.put("tier", electricItem.getTier(stack));
output.put("transferLimit", electricItem.getTransferLimit(stack));
}